[Coco] [COCO] SuperIDE SuperDrivers and DVDROM IDE drives

[Boisy G. Pitre]

One can make an "RBF CD-ROM" image.  I've done this before.  It involves using ToolShed to create a large RBF image, then copying the desired files to it.  That image is then burned onto a CD or DVD and can be accessed via SuperDriver (which can read/write 2048 byte sector devices).

I've also used DVD-ROMs on the CoCo with the SuperIDE and SuperDriver.

Chris' CDF file manager only comes into play if you wish to access the data on CDs in the native file format.

Boisy G. Pitre
boisy at tee-boy.com



On Sep 21, 2012, at 8:16 AM, Mark Marlette <mmarlette at frontiernet.net> wrote:

> Gene,
> 
> Chris would know more about the specifics but as I understand it. To access a CDROM/DVD on the CoCo3, it requires, SuperDriver, Chis's CDman(?? forgot name ATM) and at later version of NOS. They all work together.
> 
> Chris????
> 
> Regards,
> 
> Mark
> 
> 
> 
> 
> 
> 
> ________________________________
> From: Gene Heskett <gheskett at wdtv.com>
> To: coco at maltedmedia.com 
> Sent: Friday, September 21, 2012 6:55 AM
> Subject: Re: [Coco] [COCO] SuperIDE SuperDrivers and DVDROM IDE drives
> 
> On Friday 21 September 2012 07:16:02 David Ladd did opine:
> 
>> Just a quick check to see if anyone has managed to use a IDE DVDROM
>> drive on the CoCo using the SuperIDE and the SuperDrivers?
> 
> I don't know about that combination as my setup is scsi, but I believe that 
> the drivers from Chris Hawks are required because the native sector sizes 
> of the CD/DVDROM is 2048 bytes.  I believe the superdriver only translates 
> between 512 byte sectors and the coco's native 256 byte sectors.  It does 
> this nicely on both of the 1gb scsi drives I have hooked up.
> 
> That is something I should check into as I do have a scsi cd reader.
> Humm, according to Cloud9's site, it does appear that the superdriver 
> should support a cdrom's 2048 bit sector.  But with only the usual 24 bit 
> addressing, a DVDROM would overflow if it was more than 90% full.  4Gb max 
> drive size.  That, with the size of our corpus of os9 software, shouldn't 
> be a problem. :(
> 
> There is one gotcha in the superdriver, but I'd have to go boot up mine to 
> get the details.  The docs aren't too clear in places.
> 
> Cheers, Gene
> -- 
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