Spotter spots two out of the six McLaren MP4-12C Project Alpha's
aescripts + aeplugins on Instagram: “NEW: MP4 + Alpha Converter for After Effects. 25% Off until July 27. Convert videos with alpha channel to MP4/h264, keeping the background…”
Transparency | AVPro Video - Documentation
vb.net - How to play a transparent mp4 video (video with apha channel) on .net - Stack Overflow
Video with transparency in Chrome, Edge, Firefox, Safari, iOS and Android, circa 2022 - SuperGeekery
HEVC / H265 with Alpha Support in AME - Adobe Support Community - 10630686