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Offline Daedalus

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Re: formatting amiga discs for use with pc help
« on: February 18, 2009, 05:30:53 PM »
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ChuckT wrote:
What I remember is the Amiga disks are 880K with less after formatting and the IBM disks are 720K or something like that on a double density disks but I always format mine at around 1.4.


You're mixing things up here. There's nothing special about "Amiga" disks. Buying PC formatted disks won't help at all. Basically there are Double Density (DD) disks and High Density (HD) disks. DD disks are 1MB in size and HD are 2MB. When formatted however, a DD disk can hold 880KB on an Amiga or 720KB on a PC, and an HD disk can hold 1.76MB on an Amiga or 1.44MB on a PC.

The problem here is that most Amigas come with a DD drive as standard, so they can't read HD disks - whether formatted for the PC or the Amiga. It just doesn't work. So what you need to do is get hold of DD disks, or format an HD disk as a DD disk. This is probably easier done on the Amiga side, but you must remember to tape over the hole on the right of the label (not the write protect one, the other one). If you don't, the PC will think it's an HD disk and try to read it at 1.44MB, not the 720KB that it's formatted with. Covering the hole will make the PC drive identify it as a 720KB disk and it should read fine.
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Offline Daedalus

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Re: formatting amiga discs for use with pc help
« Reply #1 on: February 18, 2009, 05:33:39 PM »
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ste182 wrote:
well ive formatted them now but my new problem is copying whdload ovr on a floppy, ive got the error "falied crc error" when copying and also "error opening installer" when trying to install it. any light on this?


CRC errors are common when you're using CrossDOS, especially with old disks or HD disks formatted as DD disks. Your best bet is possibly to see if you can get a good disk and use it to get Fat95 onto your Amiga. It supports long filenames, and has better error handling than CrossDOS.
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