YouTube’s automatic archive is not a safe backup for a 24/7 lofi broadcast. YouTube says streams shorter than 12 hours can be automatically archived, while a stream that exceeds 12 hours may not be captured at all.
For a channel you own, the safer approach is to record the outgoing programme locally in OBS, save it in MKV, and apply a retention policy before the stream starts. You then move completed recordings elsewhere or remove them once you have checked that the files you need are intact.
Why a 24/7 stream may not get a YouTube archive
YouTube’s official archive guidance distinguishes between shorter live streams and broadcasts that run beyond 12 hours. A stream shorter than 12 hours can be automatically archived, but YouTube says that if a stream exceeds 12 hours, it may not be captured at all.
That wording matters. It does not mean that every long stream will definitely disappear, nor does it give you a reliable archive for a continuous channel. A 24/7 stream is well beyond the documented threshold, so you should treat the YouTube replay as something that may be available rather than as your only copy.
YouTube also recommends recording a local archive as a backup. This is especially relevant for a lofi channel where the live output may contain many hours of music, artwork and ambient animation that you would not want to recreate after a failure.
The archive question is separate from the stream staying live. A broadcast can remain visible to viewers while your expected replay is incomplete or unavailable. It is also separate from DVR. YouTube says rewind can be limited or unavailable for streams longer than 12 hours, depending on the device or app version. DVR is useful for viewers who want to move back within a live broadcast, but it is not a complete archive policy.
If you are building the channel itself, the guide on making an ocean waves 24/7 live stream on YouTube covers the kind of continuous visual programme that often needs this protection. The same principle applies to devotional loops, study rooms, radio-style channels and local news rotations.
OBS recording guidance applies to recording your own production output. It does not establish a supported viewer-side method for continuously capturing another person’s YouTube stream. If you do not own or control the source, check the applicable permissions and current platform rules before saving or redistributing it.
Choose the archive and retention policy first
Do not begin by choosing a large drive and hoping it will be enough. Begin by deciding what the archive is for, how long it needs to remain available, and where completed files will live.
A practical policy might keep only the most recent material on the computer running OBS, while older recordings are moved to a separate archive destination. Another policy might retain selected days, programme changes or incident windows rather than every minute of the broadcast. The right choice depends on why you are recording.
For example, a devotional channel may want a copy of each day so it can check whether the programme ran correctly. A study channel may only need recordings while testing a new playlist. A small business may need to preserve broadcasts around a product announcement, but not every ordinary hour afterwards.
Write the policy down before you start. Include these decisions:
| Decision | Practical question | Result |
|---|---|---|
| Purpose | Do you need recovery, quality checking, editing or a historical record? | Defines what must be retained |
| Local retention | How much recent material should remain on the OBS computer? | Sets the working disk requirement |
| Archive destination | Where will completed recordings go? | Keeps the active disk from becoming the permanent archive |
| Deletion rule | When can an old file be removed? | Prevents unclear, accidental retention |
| Verification | What must be checked before deletion? | Reduces the risk of deleting the only usable copy |
Avoid a policy that says “delete old files when the disk is nearly full”. By that point, OBS may already be unable to start a new recording or may stop recording because there is no usable space left. A date-based or segment-based rule is easier to follow.
A separate archive drive can be useful, but it is not a substitute for calculating your need. An external hard drive for archived recordings should be selected only after you know the actual recording bitrate, the amount of footage you want to keep and the budget available. The source drive and the archive drive should not be treated as two copies if they are permanently attached to the same computer and exposed to the same failure.
If the channel is also running from a modest computer, first check the wider production setup in the guide to OBS settings for a 24/7 YouTube stream. Recording adds another workload, and storage management is only useful if the live output itself remains stable.
Set an OBS recording path that you can manage
In OBS, open the recording settings and choose a recording path deliberately rather than accepting a location that is difficult to monitor. The exact labels can vary slightly by operating system and OBS version, but the important setting is the folder where completed and active recordings are written.
Use a dedicated folder for recordings rather than mixing them with downloads, project files or the operating system. A clear structure makes a retention policy possible. You could organise files by channel and date, for example:
Recordings/
LofiChannel/
2026-10-04/
2026-10-05/
Do not place the active recording inside a folder that is automatically synchronised, compressed or cleaned by another application unless you understand how that application handles a file that is still being written. A recording that is being created should have a predictable local destination with enough free space.
If you use a second drive, check that it is connected and mounted before starting OBS. On a laptop, confirm that the drive does not enter a power-saving state that interrupts access. On Windows, macOS or Linux, also check the account permissions for the selected folder.
The recording path should be easy to inspect during a live session. You should be able to see the free space, the current file name and whether the file size is increasing. A path that is technically valid but difficult to reach encourages late checks, which are exactly what a 24/7 workflow is meant to avoid.
Name files with the channel, date and start time if OBS or your operating system allows it. This is more useful than names such as Recording 1. If you later move files to an archive drive, the name should still tell you what they contain without opening every file.
Before committing to a long broadcast, make a short test recording. Start the programme, record for long enough to create a real file, stop the recording normally and play the result. A path that looks correct in settings is not enough evidence that the destination is writable and readable.
Record locally in MKV
OBS recommends MKV for recording because an ungraceful stop is less likely to corrupt the entire file. This is important for an always-on channel: a power cut, system restart, application crash or disconnected drive can interrupt a recording without giving the file a chance to finish its normal closing process.
In OBS, select MKV as the recording format in the recording output settings. This creates a local file that is well suited to being written continuously. It may not be the format your video editor, television or mobile device prefers, but that compatibility issue can be handled after the recording has finished.
The safer sequence is:
- Set the recording path and choose MKV.
- Start a short test recording.
- Stop it normally and play it back.
- Start the long recording only after the test passes.
- Treat the active MKV as unfinished until OBS has stopped recording and the file is no longer changing.
Do not switch to ordinary MP4 merely because it is familiar. OBS’s format guidance explains that ordinary MP4 and MOV recordings require finalisation. If writing is interrupted, the file may not be recoverable. That does not mean every interrupted MP4 or MOV is unusable, but it does mean you should not select it as the safer default for a recording that may run for many hours.
OBS also discusses fragmented MP4 and MOV as alternatives with chunk-level resilience, subject to codec and editing compatibility. Those formats can be appropriate in a workflow that specifically needs them, but MKV is the straightforward choice when your priority is protecting the recording from an ungraceful stop. Read the current OBS audio and video formats guidance before choosing a different format for an editor or device.
Recording locally does not make a backup by itself. If the only copy is on the computer running the live channel, a drive failure can remove both the stream output and the archive. The local recording is the first controlled copy; your retention and transfer process determine whether it becomes a useful backup.
Remux MKV to MP4 when needed
Remuxing changes the container around the existing audio and video streams. It is not the same as re-encoding. When the codecs and software support the operation, remuxing an OBS MKV to MP4 can make the finished recording easier to open in a video editor or common playback application without creating another generation of compressed video.
Wait until the MKV recording is complete before remuxing it. Do not remux the file that OBS is currently writing. Keep the original MKV until you have opened the resulting MP4 and checked it.
OBS includes a remux option for completed recordings. Its standard recording guide explains the workflow and the relevant settings: OBS Standard Recording Output Guide. Depending on your OBS version, you can remux through the recording menu or configure automatic remuxing after a recording stops.
Automatic remuxing can be convenient, but it creates an extra step at the end of each recording. Make sure there is enough free space for the output and that the destination is not subject to the same retention rule too soon. If the original MKV is removed immediately after remuxing, a failed or incomplete remux can leave you without the source you intended to preserve.
A sensible order is:
- Stop the recording and confirm that OBS has finished writing.
- Remux the completed MKV if MP4 is needed.
- Open the MP4 and check its duration, audio and video.
- Keep the MKV until the MP4 has passed your verification rule.
- Move or delete the files only according to the archive policy.
If an editor accepts MKV, you do not need to remux merely for appearance. Keeping the original container avoids an unnecessary operation. Use MP4 when there is a real compatibility reason, such as a particular editor, player or delivery destination.
Estimate storage from the real recording settings
The amount of disk space depends primarily on the recording bitrate and the time retained. There is no universal storage figure for a lofi stream because two channels with similar visuals can use different video resolutions, frame rates, audio settings and encoder bitrates.
Use the bitrate shown in your actual OBS recording settings, or measure the size of a completed test file over a known duration. A simple estimate is:
storage required ≈ total recording bitrate × recording duration
For a more usable calculation, convert the bitrate and duration into the units your operating system displays, then add working room for files being remuxed, temporary files and recordings that have not yet been moved. The purpose of the estimate is not to produce a universal answer. It is to connect your own settings with your own retention policy.
The variables that matter are:
| Variable | Why it matters |
|---|---|
| Video bitrate | Higher bitrate produces larger recordings over the same time |
| Audio bitrate | Audio is smaller than video in many workflows, but still contributes to every file |
| Recording duration | A continuous recording grows for as long as it runs |
| Retention period | Keeping more hours means retaining more bytes |
| Number of copies | A local copy and an archive copy require space in both destinations |
| Remux workflow | A temporary MP4 may need additional free space while the MKV remains present |
Measure, do not guess. Record a representative section with the same OBS encoder, resolution, frame rate and audio settings used by the live channel. Check the resulting file size, then use that observed rate when planning storage. A short quiet lofi scene may still be representative of the encoded output, but do not assume that a test with different settings predicts the production files.
Segmentation can make the result easier to manage. FFmpeg’s segment muxer can create timed files and a segment list, which helps with indexing, transfer and deletion. However, splitting is not compression. If you retain every segment, the total storage is approximately the same as retaining one continuous recording. Segment boundaries can also move from the requested time because video splits occur at keyframes.
You can use segments to make a rolling policy clearer. For instance, a process could move completed segments to an archive destination, retain only the most recent group on the working disk and delete segments outside the chosen time window. The exact segment length should follow how you transfer, review and delete files, not an assumption that shorter files use fewer bytes.
Watch the free space while the system is operating. A disk can appear adequate at the start of a broadcast and become unsafe after several hours if files are being retained unexpectedly, a remux creates a second copy or another application consumes the same space. Set your own warning point before the disk is close to full, then stop, move or delete files according to the policy rather than waiting for an emergency.
Move, segment and delete without losing the only copy
A retention policy works only when each transition is explicit. The active recording belongs on the working destination until OBS has closed it. A completed file belongs in the archive destination only after the transfer has finished and the destination file can be opened.
If you move a large file between drives, wait for the transfer to complete. Do not judge completion only by a progress window disappearing. Check that the destination file has the expected name and a plausible size, then play part of it. For important material, compare a checksum or use another file-integrity method before removing the source.
If you use timed segments, make the segment list part of the archive where it helps identify the order. Keep the original timestamps in filenames. A lofi stream with repeated visuals can be hard to identify by content alone, so dates and times are more reliable than thumbnails.
Do not delete an old file merely because a newer file exists. Delete it when the newer copy has passed your verification rule and your retention policy says the older copy is no longer needed. If the archive drive is the only second copy, consider whether a hardware fault, accidental deletion or environmental event could affect both destinations.
For channels that need only a recent operational history, a rolling retention window may be enough. For channels that want a permanent catalogue, move selected material to a separately managed archive rather than leaving every day on the live computer. The goal is controlled storage, not the largest possible collection.
Verify the recording before deleting anything
Verification should be a routine step, not something reserved for a failure. A recording can have a plausible filename and a non-zero size while still having missing audio, an incomplete ending or a remux problem.
For each file you plan to keep, check that it opens, that the image plays, that the lofi audio is audible and that the duration is broadly what you expect. Scrub through the beginning, middle and end rather than watching the entire recording. If the file is segmented, open more than one segment and confirm that the sequence is understandable.
For an MP4 created from MKV, check the MP4 separately. Make sure the audio remains synchronised and that seeking works in the application where you intend to use it. Keep the MKV until the MP4 passes these checks and you have decided that the original is no longer required.
Also verify the destination after moving files. Compare filenames, sizes and, where appropriate, checksums. A file that plays from the source does not prove that the copied destination is complete.
A short written checklist can prevent rushed decisions:
- OBS has stopped recording and the file is no longer changing.
- The file opens in the intended player or editor.
- Audio and video are present at the beginning, middle and end.
- The duration and filename match the archive record.
- The moved copy has completed and can be opened.
- Only then is deletion allowed under the retention policy.
If verification fails, keep the source file and investigate. Do not repeatedly overwrite the only copy while testing different players or conversion settings. When the channel is important, make a separate working copy before attempting repair or conversion.
A workable overnight routine
Before starting a 24/7 broadcast, confirm that the selected recording path exists, the destination is available and the free-space warning point has not been reached. Run a short recording test if you have changed the OBS profile, storage drive or format.
During the broadcast, check that the active file is growing and that the live output remains visible. A monitoring routine is also useful for the channel itself, as described in how to check whether a 24/7 YouTube stream is still live. Stream monitoring and archive monitoring answer different questions, so one should not replace the other.
After a recording closes, verify it, remux only if required, and move it according to the policy. Keep a simple log of the date, time range, filename, destination and verification result. If this repeated file handling is the part most likely to be missed overnight, StreamNeo removes that particular local-computer burden by turning an uploaded file into a YouTube-only 24/7 stream that runs with your computer switched off and restarts automatically if it drops. You still need your own decision about what to archive and how to retain it.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Will YouTube automatically archive my 24/7 lofi stream?
YouTube says streams shorter than 12 hours can be automatically archived, while a stream exceeding 12 hours may not be captured at all. A 24/7 broadcast therefore should not depend on YouTube’s automatic replay as its only archive.
Should I record a 24/7 stream in MP4 or MKV?
For an OBS recording, MKV is the safer default because OBS recommends it for resilience if recording stops ungracefully. Remux the completed MKV to MP4 when a particular editor or player requires MP4, and verify the result before deleting the original.
Do shorter recording segments reduce disk usage?
No. Segmentation divides the recording into separate files but does not compress it. Keeping all segments uses approximately the same total storage as keeping one continuous recording, and the exact boundaries can depend on video keyframes.
Can I record somebody else’s YouTube livestream with OBS?
The OBS guidance here concerns recording the production output of a channel owner. It does not establish a supported viewer-side method for continuous capture of another person’s stream, so check permissions and current platform rules before recording or redistributing it.