Size or Quality ???

[K_I_R_E_E_K]

i can play on a computer some genesis games and record the musics......but theres a problem.

there are 3 option on the sound, basicly it is bad/average/good

if i record the music in the bad quality it will have somewow a big size but the quality is bad, if i record in the average quality the quality will inprove alot but the size will double, but it is aceptable.

then comes the max quality, the change is almost insignificant but there is a change, basicly the sounds become more detailed, but the sizes doubles again making the music bad in terms size/quality

just an example.....1:30 of ecco the dolphin
low quality- 6 Mb
average quality- 12 MB (the one i use)
max quality- 24 Mb

as a side note, the reason of this insane size is the bit velocity, normaly musics have the bit velocity beetween 30kbps to 200kbps, on the average quality the bit velocity is 705kbps and the max is 2x more (1410kbps)

should i stay average or should i use the max quality?