Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Beware of foreign BluRay versions

I bought Season 2 BluRay DVDs and they would not play on my BlueRay DVD player. I think it's because the DVDs were foreign and are incompatible with ours here in the US. Fortunately the seller refunded my money and handled the refund quickly. I noticed that on the bottom of the email from the seller, it looked like Chinese writing.Nothing on Amazon indicated that these were foreign DVDs.