| From: | Daedalus |
| Date: | 16 Mar 2001 at 10:32:05 |
| Subject: | Re: maste iso |
Hi All,
On Fri, Mar 16, 2001 at 03:22:24PM +1100, mark krawczuk wrote:
> how come it takes only 20 minutes to write a 650 meg image to hd , and it
> takes over 2 hours to copy the same cd normally to hd?
When you make an image of the CD, you're copying it byte-for-byte
sequentially, and you're writing the file byte-for-byte sequentially to a
single file. When you start copying separate files, the CD-ROM's laser has
to jump all over the disc, which is a lot slower than simply reading the
disc in a stream, which is what it was originally designed for (As in
audio CDs)
Rob
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