M4A files (from YAMB) = slightly smaller filesize than originalAACs?

[Christopher Woods (CustomMade)]

> I'm not going to swear to it, but as long as the conversion 
> is only taking a few seconds, then there's probably nothing 
> to worry about. Hopefully some others will chime in, but 
> conversion to MP3 would take a lot longer (probably several 
> minutes on a current PC? Try it to find out). If you're not 
> transcoding, then you're (hopefully!) not performing a lossy 
> operation on the audio stream.

Indeed. Preaching to the choir there, I work with audio on a daily basis
juggling probably half a dozen formats, lossy and lossless. I spend
seemingly half of my waking hours explaining to people why transcoding their
iTunes to MP3 is not a good idea.