Standard DVDs are currently the most widely used format. DVDs will play on DVD players, HD DVD players, and Blu-ray players. This is the format of most movies in our database, and the format with which the majority of members are familiar. DVD is not a high-definition format. DVD discs are worth one credit each on our site.
Blu-rays are the leading high-definition format. Blu-rays will only play in Blu-ray players (this includes some gaming systems, such as the Playstation 3). Blu-ray discs offer the highest data capacity of the disc formats, with the most advanced features. Blu-ray discs are more expensive to manufacture than both DVDs and HD DVDs, so they have a higher retail value. Each disc in a Blu-ray set is worth two credits on our site.
HD DVD is a discontinued high-definition format. HD DVD players are no longer manufactured. While HD DVDs have a higher data capacity than DVDs, they are far behind Blu-rays in not only capacity, but also advanced features and studio backing--which caused Blu-ray to win the high def DVD format "war" . HD DVDs will only play on HD DVD players. HD DVD players will play on XBOX 360 game systems, but only if an optional drive is installed. HD DVDs are worth one credit on our site.
UMD stands for Universal Mini Disc. The miniature discs were developed for use with a PSP (Playstation Portable), a handheld video game system. UMD discs have less storage capacity than the above 3 mentioned formats. UMDs can only be played on PSPs, unless a PSP drive is installed on another device. UMDs are worth one credit on our site, unless they are part of a disc set, in which the content on the DVD or Blu-ray disc is replicated on the UMD. In this case, the UMD is not worth a credit.
VHS tapes are a discontinued home video format not available for swapping through our official system. VHS tapes can only be played on a VCR. VHS tapes have the lowest capacity, resolution, and audio quality of the formats listed. While VHS tapes cannot be swapped through our official system, members are welcome to swap VHS tapes in the VHS/Laserdisc Bazaar. As stated in the "Rules for Swapping in the VHS Bazaar" thread, VHS tapes can be swapped for no more than one credit per tape.