Slim is good, especially when you’re already lugging around a laptop. NU’s EBC100 is apparently the World’s slimmest and lightest external Blu-ray player. It measures just 17.6mm thick and in addition to playing back hi-def discs it can also burn DVDs at 8x. No external power source is needed as it draws juice from USB, which makes it all the more portable.
Update: Amex Digital’s external Blu-ray player and DVD burner is just 16mm thick. No word on the weight, though.