I have an album thats a bit more than 200MB, converted to just an audio only M4a or MP4 its still under 80MB
Is that 120+MB all chaff or is there another way to prevent losing all muh damn wheat
CONSTRAINT/NON-CONSTRAINTS
FILE SIZE DOES NOT MATTER AT ALL TO ME. JUST TO BE CLEAR
MUST BE AN MP4 “video” file. I get that MP4 is a container or whatever but that is a hard constraint—Please respect that
M4A/AAC are not acceptable. It must be within the container that is MP4, non-negotiable


Lossless formats (flac, wav) will be bigger file sizes comparatively.
Do a test, convert CD/DVD audio to wave and aac, play them both back on the system/speakers that you intend to use, can you notice a difference?
If not, don’t worry about it. If you can, then welcome to the audiophile club.
Personally I prefer lossless because they sound clean and detailed, lossy formats always sound muddy to me, like I’m listening to an album behind a heavy curtain. But I can hear my neighbours ceiling fan motor droning at night…so take that as a hearing acuity rating.