(Is There A) List of Atari/C64 "Flippy" Disks...

[Rybags]

The 1541 doesn't have a track 0 sensor, that's why it can repeatedly bang the head sounding like it's destroying itself (which it is as it can send it out of alignment)

 

Stargider II - I'm fairly sure I had Starglider on the ST but wasn't able to copy the second one.  Though that was common, where Amiga was able to duplicate a large portion of it's library using software alone, the ST wasn't.

[zzip]

3 minutes ago, Rybags said:

The 1541 doesn't have a track 0 sensor, that's why it can repeatedly bang the head sounding like it's destroying itself (which it is as it can send it out of alignment)

Yikes!  How does it know where to start reading a disk, or its table of contents? (whatever this is called in the C64 world?)

[Rybags]

https://www.c64os.com/post/howdoes1541work

 

Just found that - seems to be a good informative piece.

If it's a properly formatted disk, it can just get the sector/track ID from the media.  If that's not the case or if an error occurs, it just steps the head back 35 times.

Fair enough that they omitted the index hole sensor - so do the early Atari drives.  But omitting the track zero sensor borders on being a criminal act.

[BillC]

11 hours ago, Rybags said:

https://www.c64os.com/post/howdoes1541work

 

Just found that - seems to be a good informative piece.

If it's a properly formatted disk, it can just get the sector/track ID from the media.  If that's not the case or if an error occurs, it just steps the head back 35 times.

Fair enough that they omitted the index hole sensor - so do the early Atari drives.  But omitting the track zero sensor borders on being a criminal act.

The Atari 810 doesn't have a track 0 sensor either.

[+Eyvind Bernhardsen]

On 12/22/2023 at 1:40 AM, Rybags said:

I have to wonder though if there were any Amiga/ST dual format disks.

Not only did they exist, there was an entire magazine named after the dual format disk they put on every cover: ST/Amiga Format (later split into ST Format and Amiga Format) from Future Publishing. Heady days.