joska wrote:The only difference is that you don't have to format the already formatted disks.
joska wrote:Formatted or not formatted, it really doesn't matter as you can format the disks from the desktop anyway. Just remember to buy DD (usually labelled "DD-DS") disks if you have a plain ST, as HD floppies can be a bit unreliable when DD-formatted.
joska wrote:The problem is that HD floppies really needs a stronger magnetic field when writing than the DD floppies. I have tested HD floppies on my ST's since I don't have many good DD floppies left. They work fine as DD's in my STE's (one with original drive and one with modified Sony drive from a PC) but I get lot of read errors on my Megas with original wide-button drives.
czietz wrote:As other people have already written in this thread: Do not use HD floppies in a DD drive. Even those you think you have formatted successfully in your ST will not work reliably. Regardless of whether it doesn't say "IBM format" on them.
As for your observation: For the disks that were previously formatted in a proper HD drive (the ones saying "IBM format") your ST's drive would have had difficulties even erasing the old magnetic information. Thus, you got instant errors. If the other disks were indeed completely unformatted, your ST's drive might have managed to record something. But the magnetic information is weak, the disks won't work reliably. BTST.
tcat wrote:`IBM FORMAT' remains mystery to me.
tcat wrote:Verbatim 2HD - DD OK
Maxwell 2HD - DD OK
NO-NAME 2HD - DD OK
Apple MacOS Installation Floppies 1.44 - DD OK
Verbatim 2HD factory `IBM-FORMAT'ed - DD r/w problems
EDIT, I should have stressed, factory preformat causing difficulties here.
Users browsing this forum: No registered users and 7 guests