# Error correction feature on DVD players **URL:** \ **Category:** Factual Questions\ **Created:** [January 7, 2009, 10:15pm UTC](https://boards.straightdope.com/t/error-correction-feature-on-dvd-players/480294 "2009-01-07T22:15:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![What\_the](https://avatars.discourse-cdn.com/v4/letter/w/f4b2a3/32.png) [@What\_the](https://boards.straightdope.com/u/What_the)\ **Post date:** [January 7, 2009, 10:15pm UTC](https://boards.straightdope.com/t/error-correction-feature-on-dvd-players/480294/1 "2009-01-07T22:15:55Z")
Blue Ray ; Schmu Ray … I just want a player that plays every disc I put in it. Is “error correction” a factor that I can use to make a decision? Yes I did Google it and got some old links…mainly other message boards. ---
**Author:** ![What\_the](https://avatars.discourse-cdn.com/v4/letter/w/f4b2a3/32.png) [@What\_the](https://boards.straightdope.com/u/What_the)\ **Post date:** [January 15, 2009, 12:45pm UTC](https://boards.straightdope.com/t/error-correction-feature-on-dvd-players/480294/2 "2009-01-15T12:45:28Z")
One bump … anybody know about error correction? Maybe it doesn’t vary from player to player?? ---
**Author:** ![Balthisar](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/balthisar/32/2825_2.png) [@Balthisar](https://boards.straightdope.com/u/Balthisar)\ **Post date:** [January 15, 2009, 12:50pm UTC](https://boards.straightdope.com/t/error-correction-feature-on-dvd-players/480294/3 "2009-01-15T12:50:25Z")
Error-correction is part of any digital protocol, and can vary from simple checksums to complex coded redundant data. All players should obverse the same protocol, though. Problems playing disks are usually due to physical defects on the disks, though, such as scratches, or now due to software incompatibilities (new disks have new keys).