Best Buy has a 25 pk. for 9.99, which is a great price. However, I bought 2 25 packs and the discs won't even begin to burn. They are under the manufacturing ID TTG02, which I hadn't heard of before buying these. I've burned using all sorts of media, including some cheap-o Princo discs, but have never had this type of copy error before. With nero, a power calibration error pops up after about 1 minute into the burn. It actually never starts the burn, since there is no visible burning started on the disc. These are going back to Best Buy tomorrow. I may try the DVD+r packs, but am not sure if these are the same manuffacturer or not.