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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: sim085 on November 23, 2009, 12:02:57 PM

Title: Does the A570 take normal CDs?
Post by: sim085 on November 23, 2009, 12:02:57 PM

Hi,

I was wondering, does the A570 take normal CDs? Or I would have to stay buying custom CDTV CDs from Internet?

Regards,
Sim085

Title: Re: Does the A570 take normal CDs?
Post by: jj on November 23, 2009, 01:17:55 PM

What do you mean by take normal cds?

Title: Re: Does the A570 take normal CDs?
Post by: sim085 on November 23, 2009, 01:23:42 PM

Quote from: JJ;530890

What do you mean by take normal cds?

The normal ones we use in our PCs to backup data. I read on Wikipedia that it was designed to be compatible with the ISO 9660 CD-ROM discs but do not know if these refer to the normal CDs we buy from computer shops or some old standard.

Title: Re: Does the A570 take normal CDs?
Post by: meega on November 23, 2009, 01:44:10 PM

I used mine with CrossDOS to read PC CDROMs, pull jpegs off them, etc.

Title: Re: Does the A570 take normal CDs?
Post by: jj on November 23, 2009, 02:34:28 PM

It should read data cds created on pc fine.  You shouldn't nee to use crossdos

Title: Re: Does the A570 take normal CDs?
Post by: Thomas on November 23, 2009, 02:40:17 PM

Quote from: meega;530893

I used mine with CrossDOS to read PC CDROMs, pull jpegs off them, etc.

I don't think that CrossDOS will read CDs.

Quote

I read on Wikipedia that it was designed to be compatible with the ISO 9660 CD-ROM discs but do not know if these refer to the normal CDs we buy from computer shops or some old standard.

ISO 9660 is a way how to arrange files inside the available storage. It has nothing to do how the CD was manufactured and whether it is a CD-ROM, CD-R or CD-RW.

There are two levels of ISO 9660:

level 1 = all file names upper case, each file name consits of eight characters + one dot + three characters extension (like MS-DOS).

level 2 = all file names upper case, max. 32 characters, max. one dot.

and there are extensions:

Rockridge = upper + lower case characters, Unix protection bits.

Amiga = upper + lower case characters, file notes, Amiga-style protection bits.

Windows also knows another extension which is called Joliet. It allows upper + lower case characters with up to 256 characters per file name (I think).

There are only few Amiga CD file systems which can read Joliet: AsimCDFS, CacheCDFS and AllegroCDFS.



Additionally to the file system used, the quality of the CD matters, too, because the A570 is rather old with a rather imprecise laser. Manufactured CDs (silver) work best. CD-Rs might work better when written at low speeds (1x or 2x). CD-RWs might not work at all.

Bye,
Thomas