more than likely the CDFS you downloaded
can't read juliet formatted disks.
so it defualts to ISO9660.
end result is names with 8 plus three formating.
example "theisanamigafile.info" becomes thisisan.inf
either burning the CD in Rock Ridge format or use a different
CDROM FS
try amicdfs240.lha or a old copy of asimware cdfs
BTW 3.1 is allot more compatible with older software and fastram
is added correctly so you have more chip ram.
I definately recommend you get at least 3.1