For a 24/7 OBS recording, choose MKV if your priority is keeping a playable, recoverable file after a crash or power loss. Standard MP4 and MOV need finalization and can become unrecoverable if recording stops unexpectedly. If you need MP4 compatibility, OBS 30.2 and later offers Hybrid MP4, which uses fragmented writing and soft-remux finalization; check that its codec support suits your workflow.
Which OBS recording format is safest if your computer crashes?
OBS recommends MKV when an unexpected stop is a concern. Its documentation says an unfinished MKV recording remains playable and recoverable, and that the whole file will not be corrupted if recording does not stop gracefully. This makes MKV the straightforward choice for a long local recording where interruption is possible. OBS Standard Recording Output Guide and its Audio/Video Formats Guide describe these format behaviors.
As an Amazon Associate I earn from qualifying purchases.
| Format | Interruption behavior | Compatibility and workflow notes |
|---|---|---|
| MKV | OBS describes it as failsafe; unfinished recordings remain playable and recoverable. | Supports every encoder combination in OBS. Remux to MP4 if your editor or delivery workflow requires a standard MP4. |
| Regular MP4/MOV | Requires file finalization; if writing is interrupted, OBS warns the file may not be recoverable. | Do not choose it as the safest direct-recording format when crashes or power loss are in scope. |
| Fragmented MP4/MOV | Fragmented writing avoids the same finalization dependency as regular MP4/MOV. | Confirm codec and target-editor compatibility before relying on it. |
| Hybrid MP4 | Uses fragmented writing and soft-remux finalization for wider compatibility; OBS describes it as recoverable after an aborted write. | Available in OBS 30.2 and later; supports H.264, HEVC, and AV1 video. Audio support differs, including limited PCM compatibility. |
| Hybrid MOV | Uses the hybrid fragmented-writing approach. | Supports H.264, HEVC, and ProRes video. Relevant when the workflow needs its codec profile, especially ProRes. |
These behaviors and codec distinctions are documented in OBS’s Audio/Video Formats Guide and Hybrid MP4 & Hybrid MOV Formats. Availability and supported combinations depend on the OBS version and codecs you use; verify that your intended editor can open the resulting file.
How do I set up a resilient recording in OBS?
- Choose a known destination: open Settings > Output, select the recording path, and place it on storage with enough free space for the recording and retention period you intend. Confirm the destination drive is mounted and writable before starting a long session. OBS’s Standard Recording Output Guide covers recording output settings.
- Set the recording format: in Settings > Output, choose MKV for maximum emphasis on recovery after an interrupted write. If you need an MP4-compatible file, consider Hybrid MP4 only when your OBS version offers it and its codec support matches your source and editor.
- Choose a quality preset for the duration: balance visual quality against disk growth and encoding headroom. A 24/7 recording continuously consumes storage; check available space against the bitrate or expected file growth of your own output rather than assuming a short test’s size will fit.
- Test a short recording: stop it normally, open it in your target player or editor, and confirm video, audio, and any intended codec combination work. For a Hybrid format, check the actual application compatibility you need.
- Preserve your configuration: export the OBS profile after setting the output options. Profiles preserve most output settings, but not scenes; export or otherwise back up the scene collection separately.
- Define a second-copy routine: decide how often to copy valuable recordings to separate storage and how long to retain each copy. A resilient container helps with an interrupted file write; it is not a backup of the drive or computer.
OBS does not prescribe a complete 24/7 backup architecture in the reviewed recording guides. Choose a retention and second-copy routine suited to the value and volume of your recordings.
#1 Best Overall
- Get NVMe solid state performance with up to 1050MB/s read and 1000MB/s write speeds in a portable, high-capacity drive(1) (Based on internal testing; performance may be lower depending on host device & other factors. 1MB=1,000,000 bytes.)
- Up to 3-meter drop protection and IP65 water and dust resistance mean this tough drive can take a beating(3) (Previously rated for 2-meter drop protection and IP55 rating. Now qualified for the higher, stated specs.)
- Use the handy carabiner loop to secure it to your belt loop or backpack for extra peace of mind.
- Help keep private content private with the included password protection featuring 256‐bit AES hardware encryption.(3)
- Easily manage files and automatically free up space with the SanDisk Memory Zone app.(5). Non-Operating Temperature -20°C to 85°C
How do I record in MKV and convert it to MP4 afterward?
Keep the original MKV as your recovery-oriented recording, then use OBS remuxing when an MP4 editing copy is needed. Remuxing changes the container; it is not a substitute for transcoding if your editor requires different codecs.
- Record in MKV and stop the recording normally when the session is finished.
- In OBS, open File > Remux Recordings.
- Select the MKV recording and run the remux. Confirm the resulting MP4 opens in your target editor before deleting or moving the original.
- Alternatively, enable automatic remuxing after recording stops in the recording output settings, if that option is available in your OBS version.
OBS documents these remux options in its Standard Recording Output Guide. Retaining the MKV until the MP4 has been checked leaves you with the original recording if the compatibility copy is not usable.
Rank #2
- Solid state performance with up to 800MB/s read speeds in a portable drive. (Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.)
- Back up your content and memories on a storage solution that fits seamlessly into your mobile lifestyle.
- Take it with you on your adventures—up to two-meter drop protection means this durable drive can take a beating. (Based on internal testing.)
- Secure it to your belt loop or backpack for extra peace of mind thanks to the tough rubber hook.
- From Sandisk, a brand professional photographers trust to take on assignments.
How much storage does a 24/7 recording need?
Container choice does not make a large recording small. Your encoder settings, resolution, frame rate, and recording length drive storage use; leave room for the whole retention window and avoid filling the destination disk. OBS specifically warns that its Lossless preset uses the CPU encoder and produces very large files: OBS published an estimate of around 7 GB per minute for that preset in its 2023 Recording Encoder Presets Guide. That is OBS’s published figure, not a calculation for your particular stream. The Indistinguishable preset can also increase storage needs and affect older or weaker hardware.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Before leaving a recording running, use a short sample to measure actual file growth with your selected settings, then apply that rate to your planned duration and retention. If you keep a separate copy on an external drive, size it for the measured recording rate and retention period; a single drive is not protection against every failure.
Rank #3
- Capacity Display Variance: 500GB external ssd often appears as around 465GB on Windows. MacOS can show full 500 GB capacity. This is binary calculation difference and doesn’t affect SSD hard drive actual physical storage
- 1050 MB/s Speed: Instantly access to your files with blazing-fast 10Gbps external SSD read up to 1050MB/s and write up to 1000MB/s. LED Light indicates USB SSD instant activity
- Data Security: Solid state drives S.M.A.R.T. health diagnostics and adaptive TRIM optimizing data block management ensures consistent write speeds and extends the longevity of the portable SSD
- USB-C & USB-A Cable: Both cables featuring rapid USB 3.2 Gen2, this USB SSD effortlessly bridges devices, enabling seamless cross-platform file transfers and backup between computers, smartphones, tablets and iPhone
- Always Fast: No slowdowns for large file transfers. With SLC caching (25% of current available capacity allocated as high-speed cache), this external SSD delivers steady 10Gbps for transfers within the cache capacity
Common recording problems and fixes
- The file will not play after an unexpected stop: if you recorded directly to regular MP4 or MOV, finalization may not have completed. For future recordings, use MKV or a supported hybrid format, then test that format in your workflow.
- The MP4 copy is missing or unusable: check whether OBS completed remuxing after recording stopped. Try File > Remux Recordings on the original MKV and verify the result in the intended editor before removing the source.
- The editor rejects the recording: the container may be supported while its video or audio codec is not. Check the editor’s codec requirements and OBS’s format support; select a compatible combination or use a workflow that converts codecs rather than only remuxing.
- The recording stops because the disk fills: choose a destination with sufficient free space, reduce the quality or bitrate if appropriate, shorten retention, or move older files to separate storage. Do not assume the container setting solves a capacity problem.
- The recording strains an older computer: avoid assuming that a high-quality preset is sustainable for nonstop operation. OBS notes that Indistinguishable can affect older or weaker hardware, while Lossless uses the CPU encoder and creates very large files. Test the intended settings before depending on them for a long session.
- Your output settings are lost during a move or reinstall: export the OBS profile as JSON, and preserve the scene collection separately because profiles do not contain scenes.
Or let it run in the cloud
If your goal is an always-on YouTube channel rather than a local archive, StreamNeo plays uploaded videos from the cloud: upload a recording or build a playlist, add your YouTube stream key once, and go live. Your computer and home connection do not have to stay on. Each slot streams the uploaded file as made, up to 4K 60fps, at one price per slot; it automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly pricing is $9.99 per month. It is for YouTube streams of uploaded videos, not camera-based live broadcasts. See StreamNeo pricing, then start your free first day.
Quick Recap
Best Value
- MADE FOR THE MAKERS: Create; Explore; Store; The T7 Portable SSD delivers fast speeds and durable features to back up any endeavor; Build your video editing empire, file your photographs or back up your blogs all in an instant
- SHARE IDEAS IN A FLASH: Don’t waste a second waiting and spend more time doing; The T7 is embedded with PCIe NVMe technology that brings fast read and write speeds up to 1,050/1,000 MB/s¹, making it almost twice as fast as the T5
- ALWAYS MAKE THE SAVE: Compact design with massive capacity; With capacities up to 4TB, save exactly what you need to your drive – from large working files to game data and everything in between
- ADAPTS TO EVERY NEED: Whether using a PC or mobile phone, count on the T7 for extensive compatibility²; It’s a true team player when it comes to heavy-duty application usage or file-saving
- HI RESOLUTION VIDEO RECORDING: Record Ultra High Resolution (4K 60fs) videos directly onto the T7 Portable SSD with your favorite camera or mobile devices; Supports iPhone 15 Pro Res 4K at 60fps video and more³
Rank #4
- Easily store and access 2TB to content on the go with the Seagate Portable Drive, a USB external hard drive
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
