transcoding help for Raspberry Pi 4?

[dvdr]

(15-02-2023 09:10)simoncn Wrote:  For both .m4a and .mp4 files, you need to specify mp4(44), not m4a(44).

Thanks for your quick answer and clarifying that - my error was, that for Apple Lossless files ("alac"), that I have and that are using the m4a-container, I had to create a separate entry in the format alac(44):wav24;176 etc.
I wrongly had assumed, that the transcoding options were about the file ending and not the codec used.