You can use ARJ or RAR to specify the archive split size. As it will compress the file it could even fit one disc.

Thanks, RAR 3.93?

Use whatever you want to split it
then on your receiving system,
join the files using copy /b file1+file2 file

PKzip was how I did this back in the day, but any dos level archiver should be able to do this for you.
PKzip would automatically break the file into disk sized chunks if you included the drive into the path eg
pkzip -add a:\file.zip *.*
I assume other archivers would act much the same

Thanks, but no luck yet
RAR 3.93 don't seem to run under DOS 3.30. It just produces some weird characters when I try to run it.
I split my file in 3pcs in WinSplit 1.0 and used the /b to merge but got "0 files copied"
I'll try PKzip next, thanks

your filenames are PCV10__A.00x in the dirlisting
your filenames are PCV10_A.00x in the copy command

😒

I'd guess RAR is too new. Back than I used ARJ. As far as I remember rar has the same syntax as arj.

1. Chunk
2. Older utilities

weedeewee wrote on 2022-04-29, 10:29:

your filenames are PCV10__A.00x in the dirlisting
your filenames are PCV10_A.00x in the copy command

😒

Solved! Well spotted : )
Thanks

STX wrote on 2022-04-29, 11:14:

1. Chunk
2. Older utilities

Nice old school software site, thanks