The Tool Desk
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MP4 vs. MOV: which should you choose?
If you already have a clip, try it in OBS before converting it. OBS describes MP4 as a de facto standard for internet video and MOV as its sister format; their codec compatibility can differ, and MOV has a historical preference on Mac platforms. The better choice depends on the codecs in the file and the software that exported it, not on a universal rule that one extension always works better.
Keep the local file format separate from the YouTube stream format. MP4 or MOV describes the container OBS reads for the clip. Your outgoing stream has its own encoder settings, including video and audio codecs, bitrate mode, frame rate and keyframe interval.
OBS Media Sources lists both formats for playback. Its Audio/Video Formats Guide explains that container and codec compatibility are different considerations.
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- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
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- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Play a pre-recorded clip in OBS
- Add the file: In your scene’s Sources panel, select + and choose Media Source. Create a new source or select an existing one, then browse to the local video file.
- Set playback behavior: Enable Loop only if the clip should repeat. Use Restart playback when source becomes active if it should start from the beginning whenever the scene becomes active. Other available controls include hardware decoding when available and hiding the source after playback.
- Preview picture and sound: Play the clip in the scene and check that both video and audio behave as intended. Confirm framing, volume and scene timing as well as playback.
- Use a different source if needed: If the built-in Media Source cannot play the file, or you need playlist behavior, try VLC Video. Install VLC first; with 64-bit OBS, use the matching 64-bit VLC version.
Check the YouTube stream settings separately
A working local clip does not by itself confirm that your YouTube broadcast is configured correctly. YouTube’s live encoder guidance lists H.264, H.265/HEVC and AV1 video options; AAC or MP3 audio; CBR bitrate encoding; and a recommended two-second keyframe frequency, not exceeding four seconds. Select settings appropriate to your encoder and stream, and check YouTube’s current guidance for the resolution and frame rate you plan to send.
Before the event, test with movement and audio similar to the intended broadcast, then monitor stream health. This checks the full path: the file in OBS, the scene and audio mix, and the outgoing encoder settings. See YouTube’s live encoder settings guidance.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
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Common problems and fixes
- The source is blank or will not play: An MP4 or MOV extension alone does not guarantee that the codecs inside are supported by the playback path. Try VLC Video with VLC installed, or export a version using codecs compatible with your setup.
- The video plays but the audio does not: Check that the file contains an audio track and that the source and OBS audio mix are configured as intended. Test the clip in the scene before broadcasting.
- The clip starts at the wrong point: If the scene should start the clip from the beginning, enable Restart playback when source becomes active. If it should repeat, enable Loop.
- The clip works locally but the live stream has a problem: Review the outgoing encoder settings and stream health independently of the source file’s container. A local MP4 or MOV does not set YouTube’s codec, bitrate or keyframe interval.
Do not confuse playback with recording
OBS’s caution about MP4 and MOV finalization applies to recording directly to those containers: an interruption while writing can leave a conventional recording unfinalized and potentially unrecoverable. It does not mean OBS cannot play an existing MP4 or MOV file. OBS discusses fragmented and hybrid MP4/MOV recording options for resilience; its guide also recommends MKV for many local recording cases, with remuxing available when a more compatible output container is needed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or let it run in the cloud
If your goal is to keep a pre-recorded video live on YouTube around the clock, StreamNeo is a different option from playing a clip through a computer running OBS: upload the recording or build a playlist, add your YouTube stream key once, then go live. The cloud keeps the stream running, so nothing has to stay on at home. Your upload streams as made, up to 4K 60fps, at one flat price per slot; StreamNeo automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly is $9.99 per month. StreamNeo streams uploaded videos to YouTube; it does not go live from a camera. Learn more at StreamNeo, or start your free first day.
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Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
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Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
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Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
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- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
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