[ILUG] DVD install

[Ronny B]

On Mon, Nov 26, 2001 at 09:37:40AM -0500, Baldwin_James at emc.com wrote:
> ya mean inner edge? i.e. circumference is greater on outer edge as opposed
> to inner edge when CD is spinning at same speed. so more data can be read at
> same rpm.
Eheh. Right. I always mess up on this :P

> They used to also quote a 17x/52x or lets say a
> 12x/32x speed, 12x denoting inner edge read speed.
Then the Marketing Department got their word in ;)

> Seek time is indeed bad on CDs...probably around the 70ms mark at this stage
> as opposed to 340ms on the old 2x Mitsumi Propriarity Drives(don't hide
> it...I know ye all had them!).  A big concern for me is CD and Motor
Ugh. Yes. It broke after three months, the replacement broken just after
the shop's warranty went out, and I just went and bought something else :/

> Most Mastered Software CD's (worth their salt) which are proggie-installs
> are written (pre-empting read-optimisation) down sequentially at file level
> , so when you install the proggie, hopefully 90% of the reads(depending on
> install options selected) will be sequential (ie. fassst!)
This reminds me of another annoyance with CDs - people sitting there with EZ
CD Wossname and dumping 100MB at a time into sessions on a CD-R without
creating an image first. It makes for *really* slow CDs. I had one patch CD
(~600MB of updates to games, plus add-ons) burned this way. Each patch is
typically from 1-10MB. All scattered randomly about a CD. *shiver*

I'd have thought the tools were able to cache up a little at a time before
writing, sorting the directories in the process, but no such luck. I'll go
for mkisofs+cdrecord (or X-CD-Roast as a frontend to the same) any day ;)

-- 
O- Nny
Wibble. Wibble. Wibble.