I really like and agree with what everyone else has said already. The online CD booklet shows up fine in Safari except for page 8 - but I really like it, except for that page - the text is running off the background a little. And the bottom of the logo cuts off in Safari, too, so that's probably the first basic fix I'd do if I were you, since it's the header and all =P

Also, I agree with the youtube/myspace linking thing - but as was said before, that's personal preference. I personally prefer a new window - don't like the whole site-within-a-site thing - it leaves me confused ;-;

Sorry I couldn't offer much more ^^; I think everyone else's comments covered it.