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To broadcast a pre-recorded video or playlist as a live stream, create a pre-recorded stream in Castr, add MP4 videos, choose Loop, enable YouTube as a destination, and start the broadcast. This gives viewers a shared live timeline. YouTube’s own Loop control is different: it repeats playback for one viewer and does not start a live stream for your channel.
Choose the kind of loop you need
| Option | What happens | How it starts |
|---|---|---|
| YouTube player Loop | Repeats a video or playlist for the individual viewer; it is not a channel broadcast. | The viewer turns it on in the playback interface. |
| Castr Loop mode | Broadcasts a pre-recorded video or playlist continuously to enabled destinations. Viewers joining later see the current point in the broadcast. | Start it in Castr. |
| Castr Date & Time mode | Broadcasts the pre-recorded program from a scheduled start rather than immediately running a continuous loop. | Starts at the selected time, using the device’s time zone. |
If you only want to repeat a video while watching YouTube, use the player control: on desktop, right-click the video and choose Loop; on Android, open Settings, then Additional settings, and choose Loop video. On a TV, use the player’s Repeat control. For a live broadcast that channel viewers can join, use Castr’s pre-recorded stream workflow instead.
Before you start
- Your YouTube channel must be verified and must not have had a live-stream restriction in the previous 90 days.
- Prepare the video files as MP4, or select videos already in Castr’s Video Hosting library.
- Decide whether you want an immediate continuous loop or a scheduled start. For scheduling, check the device time zone used to set the start.
- If you need a complete recording of the broadcast, keep a separate local archive. YouTube may not archive streams that exceed 12 hours.
Set up a looping broadcast in Castr
- Open Pre-Recorded Streams. In the Castr Dashboard, open Pre-Recorded Streams and create a new pre-recorded stream.
- Add your videos. Upload MP4 files or select recorded videos from Castr’s Video Hosting library. If you use several videos, arrange their order, toggle individual videos on or off as needed, and check the displayed total playlist duration.
- Choose the run mode. Select Loop to repeat the playlist continuously. To begin at a chosen time rather than start an immediate continuous loop, select Date & Time and set the start time. Castr’s scheduler uses your device’s time zone.
- Add YouTube as a destination. Connect YouTube and confirm that the destination is enabled. Castr can send the broadcast to other configured destinations too, but YouTube must be enabled for it to appear there.
- Start and verify the broadcast. Start the stream, or let it begin at the scheduled time. Check the broadcast preview and confirm that it is live on the intended YouTube channel before relying on it.
What viewers see—and what YouTube may not save
With Castr Loop, the channel broadcasts a shared live timeline. A viewer who joins after the start sees the program at its current point rather than starting the video from the beginning just for them. This is different from the YouTube player’s viewer-side Loop control.
For streams longer than 12 hours, YouTube says DVR rewind may be limited or unavailable. YouTube also says streams under 12 hours can be automatically archived, but a stream exceeding 12 hours may not be captured at all. If retaining the full program matters, keep your own local copy rather than relying on YouTube’s archive.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- 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.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 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.
Troubleshooting
- The video repeats for me, but there is no live broadcast. You have enabled YouTube’s player Loop, which affects your playback only. Create a Castr pre-recorded stream and start it with YouTube enabled as a destination.
- The broadcast does not appear on YouTube. Confirm YouTube is connected and enabled in the Castr destination settings, then check the preview and the intended channel.
- The scheduled stream starts at an unexpected time. Check the time zone on the device used to schedule it; Castr’s scheduler uses that time zone.
- You cannot start a YouTube live stream. Check that the channel is verified and has had no live-stream restriction in the previous 90 days.
- The playlist does not contain the intended videos or order. Review the selected files, their ordering, and each video’s on/off toggle in the pre-recorded stream setup.
- The stream’s recording is incomplete or unavailable. A broadcast exceeding 12 hours may not be captured by YouTube, and DVR rewind can be limited on long streams. Keep a separate local archive when a full recording is important.
Or let it run in the cloud
If you want a YouTube channel to keep playing uploaded videos without leaving a computer running, StreamNeo is a cloud option: upload your recording or build a playlist, add your YouTube stream key once, and go live. It loops uploaded videos from the cloud; it does not broadcast from a camera.
- Nothing has to stay on at home; the stream keeps going with your computer off.
- One flat price per slot for any quality up to 4K 60fps, exactly as uploaded.
- Automatic recovery if YouTube drops the stream.
- The first day is free, with no card required.
The monthly option is $9.99 per month. UPI and cards are available in India; card checkout is available worldwide. Start the free day by creating a StreamNeo account.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 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.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- 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
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- 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.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 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.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
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