Just received 2 Blockbuster Value Cards from giftcerticates.com. Their service was great but the cards expire 12/31/02. Six months?

I found this on their website:

Expiration dates: Original gift certificates from our merchant participants provide terms specific to the individual companies. Where expiration dates apply, gift certificates will generally be valid for six months to two years from date of purchase. SuperCertificates are valid for 13 months from date of purchase.

Caveat emptor.