one Blu-ray primer this holiday season, but just in case you missed it (or your one specific question remains unanswered), we'll point you to this one. USA Today has written ten relatively basic questions (and answers) that may be in the minds of those teetering on taking the plunge into high-def media. Things like "Will my sound system work with Blu-ray?" and "What features do Blu-ray movies have that DVDs don't?" are covered in sufficient detail, so we'd highly recommend having a look if "your friend" is still a bit clueless.