Thom Kouwenhoven wrote in a message to Roy J. Tellason:

 TK>> I have the experience that the 720k floppy's are a bit more
 TK>> reliable than the 1.44MB type.

 RJT> Oh really?  I haven't enough experience with them to have formed an
 RJT> opinion one way or another.  Though I never had anywhere near the
 RJT> trouble with the old "360k" disks that I've had with the 1.44s...

 TK> Grinn..i forgot to mention that i also had the experience that
 TK> 5.25" disks were much more reliable than the 3.5" types altogether
 TK> :-)

Yes.

 RJT> I have a 720k drive here,  but where would you find floppies for them
 RJT> at a reasonable price?  I'm used to them being *cheap*,  and really
 RJT> not into paying much for them,  considering I have a whole big pile of
 RJT> 1.44s here.

 TK> You can drill an extra hole in a 720k floppy to make it work like a
 TK> 1.44M flop but the other way around (covering a hole in a 1.44M
 TK> flop to make it work like a 720k) is, strangely enough, not
 TK> possible.

I remember trying to make one of those work,  and it wouldn't.  The extra
hole isn't the only difference,  there are major differences in the
magnetic stuff on the disk itself,  too.

---