copying disc to HD (was BigAl battery life)

[Selwyn Ward]

> 
> Rumor has it that much greater battery life can be had by burning DVDs=20=
> 
> to the internal HD and watching that versus running the DVD off the=20
> optical drive.  Makes sense, since the hard drive is going to be=20
> spinning anyway.
> 

How do you do that?  I've often tried copying discs whole to the HD (DVDs,
games & other program discs) but they always still seem to demand the disc
be in the drive or they don't run.

I had a streetmap program (Route 66 - UK maps) that came with a Powerbook
install option that meant you could run it without the disc. It ran in OS9
and worked perfectly well in Classic when upgraded to OSX on my Ti.  On my
Al tho', even tho' I install the PB version, it still will only run with the
disc in the drive.  Because its an old version, the publishers don't seem to
offer any support, but it's annoying to have to upgrade the map program,
which is otherwise perfectly adequate for my needs, just because of this.