remove can do this
syntax is a bit wacky though:
remove --size=150sec --direction=left "Track 02.gap" "Track 02.bin"

where 'left' says data will be moved from 2nd file to 1st
and so 1st doesn't have to exist, you can name it whatever you like
if name of existing file is given, data will be appended to it

and '150sec' is size in sectors
alternatively it can also be specified in samples or bytes or as hex value too

I know that the Resize tool can usually do wonders... it's just a shame that it can only crop/cut data off of the end of a file, not the beginning.

Is there another similar program out there that can remove X bytes from the start?  It's just I wish to be able to use the music tracks for general listening purposes without having to re-rip them from a burnt/mounted disc.

Thanks.