[FFmpeg-user] MP4s for music

[Mark Filipak]

I ask for advice from the learned folk of FFmpeg. The following script works. The mp4 plays -- even 
PowerDVD plays it. Song selection is available via chapters. However, I wonder about the wisdom of 
my approach and whether there's a better, more comprehensive method.

ffmpeg^
  -i "c:\chapters.txt"^
  -i c:\01.WAV^
  -i c:\02.WAV^
  -i c:\03.WAV^
  -i c:\04.WAV^
  -i c:\05.WAV^
  -i c:\06.WAV^
  -i c:\07.WAV^
  -i c:\08.WAV^
  -filter_complex "[1:0][2:0][3:0][4:0][5:0][6:0][7:0][8:0]concat=n=8:v=0:a=1[out]"^
  -map_metadata 0 -map "[out]"^
  -c libmp3lame -compression_level 0^
  "g:\Music\Ashra, Belle Alliance [1980].mp4"

8 wav files total 466,343,152 bytes.
The entire mp4 is 42,705,917 bytes.

Can that be true with '-c libmp3lame -compression_level 0'? Or is FFmpeg fibbing about compression 
level?

They're obviously compressed, compressed quite a bit, more than x/10, but are they lossless?
If so, I had no idea lame could compress so much without loss.

Would anyone with experience care to comment? I'm a novice in this realm.

--Mark.