Im consider switching over to PC, but in some rare cases I need to deliver videos with ProRes 4444 including alpha channel. Is there any similar codecs I can use, something that supports alpha and can be played on a Mac but rendered through AE on PC ?
DNxHD if it's HD
recently had good experience with MAGICYUV
If you install GoPro studio you have access to a great Chinaware codec that is almost lossless.