CDR or CDRW Disks

[Steve Holmes]

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Well, it depends on what the disks say they are.  They come in either
size.  I have some re-writable CD's I bought some time ago and they
are definitely 650's but all my permenant CDR's are all 700 or so (80
minutes.  I generally have been able to get something like 704 megs or
so on the high capacity disks and this is without doing any over
burning.  Over burn can damage some burners so I never do it.

Also, when you completely blank a CDRW, you get all your space back.
I think if formatted as a UDF type disk where you can access it like a
floppy and use windows explorer to copy files back and forth, you may
lose space that way but blanking it will get it all back for you.  In
linux, you can blank it with cdrecord -blank.

On Tue, Oct 26, 2004 at 01:55:34AM -0700, Zachary wrote:
> Hmmm.  Is the disc supposed to be 700MB?  My disc is only reported by 
> Windows at 650 or so.
> Erasing it completely doesn't help.
> 
> ----- Original Message ----- 
> From: "Chuck Hallenbeck" <chuckh at sent.com>
> To: "Glenn at home" <GlennErvin at cableone.net>; "Speakup is a screen review 
> system for Linux." <speakup at braille.uwo.ca>
> Sent: Tuesday, October 26, 2004 1:40 AM
> Subject: Re: CDR or CDRW Disks
> 
> 
> >Wrong. You can reuse the entire CDRW a great many times.
> >I recently purchased a package of 10 CDRW's with 80 minute capacity from
> >a local business supply store for under $10.00.
> >
> >On Mon, 25 Oct 2004, Glenn at home wrote:
> >
> >>It is my understanding, that with CDR  disks, you can write, but not 
> >>erase.
> >>But with CDR/W disks, you can erase,  but you don't get the space back,
> >>i.e., you cannot write over the data that has been erased, which seems
> >>little better than usless in most instances.
> >>Glenn
> >>
> >>----- Original Message -----
> >>From: "Zachary" <Z_kline at hotmail.com>
> >>To: "Speakup is a screen review system for Linux." 
> >><speakup at braille.uwo.ca>
> >>Sent: Monday, October 25, 2004 10:16 PM
> >>Subject: Re: CDR or CDRW Disks
> >>
> >>
> >>Then I am assuming that this disk I have is CDRW, because I can erase the
> >>contents.
> >>
> >>----- Original Message -----
> >>From: "Luke Davis" <ldavis at shellworld.net>
> >>To: "Speakup is a screen review system for Linux." 
> >><speakup at braille.uwo.ca>
> >>Sent: Monday, October 25, 2004 8:09 PM
> >>Subject: Re: CDR or CDRW Disks
> >>
> >>
> >>>You can not do data rewrites on CDRs.  Write once, read many applies.
> >>>CDRWs can be used for this purpose.
> >>>
> >>>On Mon, 25 Oct 2004, Zachary wrote:
> >>>
> >>>>Hi,
> >>>>I am wondering whether it would be possible to physically erase the
> >>>>contents of a CD, so as to convert it into a blank one.  I have only 1
> >>>>cdr disk, which is not enough to install Slackware Linux, unless I am
> >>>>mistaken.  I just need one more disk, and am wondering whether I can
> >>>>either download a cD formatter program, or just have to go out and buy
> >>>>another disk.
> >>>>I'd rather not do that, as I have plenty of disks already.
> >>>>Thanks,
> >>>>Zachary _______________________________________________
> >>>>Speakup mailing list
> >>>>Speakup at braille.uwo.ca
> >>>>http://speech.braille.uwo.ca/mailman/listinfo/speakup
> >>>>
> >>>>
> >>>
> >>>_______________________________________________
> >>>Speakup mailing list
> >>>Speakup at braille.uwo.ca
> >>>http://speech.braille.uwo.ca/mailman/listinfo/speakup
> >>>
> >>
> >>_______________________________________________
> >>Speakup mailing list
> >>Speakup at braille.uwo.ca
> >>http://speech.braille.uwo.ca/mailman/listinfo/speakup
> >>
> >>
> >>
> >>_______________________________________________
> >>Speakup mailing list
> >>Speakup at braille.uwo.ca
> >>http://speech.braille.uwo.ca/mailman/listinfo/speakup
> >>
> >
> >-- 
> >The Moon is Waxing Gibbous (97% of Full)
> >Home page at http://www.mhcable.com/~chuckh
> >Speakfreely address 24.105.197.112:2074
> >
> >_______________________________________________
> >Speakup mailing list
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> >
> 
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> 
> 

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