Fake iPods I've seen have "MP3" sa boxes. Mainland Chinese have this naming thing going on. Yun lang, AFAIK.
If he has the receipt, you can probably get the store name, number and website and check if the store is an official Apple store. Pero this one takes a bit of time.
30G iPods should go really cheap nowadays, since Mac practically rehashed its media lineup (check it out:
www.apple.com).
Pero how cheap? If it's anything around $200, I think you can get one that's similarly-priced (or maybe lower) here na hindi na kailangan ng shipping.