48tpi or 96tpi drives ? - Printable Version +- CBMSTUFF FORUM (https://www.cbmstuff.com/forum) +-- Forum: CBMSTUFF PRODUCTS (https://www.cbmstuff.com/forum/forumdisplay.php?fid=1) +--- Forum: SuperCard Pro (https://www.cbmstuff.com/forum/forumdisplay.php?fid=3) +---- Forum: Installation and setup (https://www.cbmstuff.com/forum/forumdisplay.php?fid=5) +---- Thread: 48tpi or 96tpi drives ? (/showthread.php?tid=166) |
48tpi or 96tpi drives ? - WolfiKH - 06-22-2014 I am from Germany (Munich) and new in the forum. I have some strongly copy-protected programs (e.g. VisiOn from VisiCorp.). All are on 5.25" Double Density floppy disks. Can one copy such floppy disks better with 48tpi or with 96tpi drives? If Double-Density floppy disks with 96tpi drives are copied, are the tracks written in the correct width? I'm sorry, if my English should be bad. https://www.cbmstuff.com/forum/images/smilies/angry.gif RE: 48tpi or 96tpi drives ? - admin - 06-22-2014 What format disks are these? If they are 5.25" 1.2MB disks, then you MUST use a 96 TPI drive. If these are Atari 400/800, TRS-80, CP/M, and most Apple II and C64 disks, you can use a 48 TPI drive. A 96 TPI drive will work in all cases though, so it is much more versatile. RE: 48tpi or 96tpi drives ? - elric1v - 07-27-2021 (06-22-2014, 02:42 PM)admin Wrote: What format disks are these? If they are 5.25" 1.2MB disks, then you MUST use a 96 TPI drive. If these are Atari 400/800, TRS-80, CP/M, and most Apple II and C64 disks, you can use a 48 TPI drive. A 96 TPI drive will work in all cases though, so it is much more versatile. I know this is an ancient thread, but it still shows up on a google search. According to https://retrocmp.de/fdd/general/48tpi-vs-96tpi.htm you can run into issues when using a 96TPI drive to overwrite disks that have been previously written with a 48TPI drive -- when moved back to a 48TPI drive, the 48TPI drive can get confused. So I think there are a few cases where 48TPI drives might be preferable, although degaussing disks before writing can probably take care of the issue. RE: 48tpi or 96tpi drives ? - admin - 07-27-2021 I have never seen an issue using disks formatted on a 48tpi drive with a 96tpi drive (and vice-versa). |