The best way to verify your ISOs is to do this:
# wget
ftp://slackware.cs.utah.edu/pub/slac...all-d1.iso.md5
# wget
ftp://slackware.cs.utah.edu/pub/slac...all-d2.iso.md5
make sure that the md5 files are in the same dir as the ISOs then:
# md5sum -c slackware-10.2-install-d1.iso.md5 <-- This will check against the md5 file
# md5sum -c slackware-10.2-install-d2.iso.md5
OR
a more automated way would be to copy the text in both files into one file
Make a file with these 2 lines:
-------------------------------------------------------
774e8ea9fe094e8f793c2452187d2723 slackware-10.2-install-d1.iso
d289b63caac14eb150f32e05e385b3ea slackware-10.2-install-d2.iso
-------------------------------------------------------
name this file anything then:
# md5sum -c md5.file.name