[Flac-users] settings for tighter compression than -8?

[David W. Tamkin]

If processing time is not a big factor -- say, I could put up with four 
to six times the duration of compressing at -8 -- what command-line 
settings could one use to get even more compression?

I have a case where the FLACs encoded at -8 are about 653.3 MB, but the 
set comes with artwork whose jpegs are 50.5 MB (I tried zipping the 
jpegs, realizing it would do very little, and the zip file still came to 
50.1 MB).  Any hope of squeezing the FLAC files a little more to get the 
total down to 703.12 MB to fit onto a CDR?  My hardware doesn't support 
overburning, and I don't want to cut the resolution of the jpegs.

Thanks for any assistance.