Help with cdrecord

[Mads V. Pedersen]

Hi Andrew,

Andrew Robinson wrote:
> I'm trying to teach myself how to use mkisofs and cdrecord. I'm a little 
> ahead on mkisofs, though that is like saying my verbals skills are 
> better than my math skills because I can say "Ma Ma" but I cannot add 2+2.
> 
> Anyway, I wrote a script that uses mkisofs to create an iso of mp3 files 
> from an m3u play list. The size of the iso file is 747200512 bytes. When 
> I try burning it with gnome toaster, it refuses because it says the 
> track is too large. The CDR is supposed to hold 700 MB, which according 
> to my calculator equates to 786432000 bytes. So either there is overhead 
> in burning the iso to disk or the CDR maker is figuring megabytes the 
> way hard disk manufacturers do.

Hmmm.... Maybe the problem is with your calculator. I get:

$ dc
1024 1024 * 700 * p
734003200

> 
> My question is this. Is there a way to determine exactly how large an 
> iso file a CDR will hold? I looked at the man page for cdrecord and 
> found options that will tell me about the recorder, but not the media. 
> But I'm pretty sure Nero and Toast on other OS's will tell me how much 
> space is available on the CDR.

check the -atip option of cdrecord.

-- mads