Stopped playing Blu Ray discs, but still plays DVDs...

The blue laser diode is bad.

DVD players cannot play Blu-Ray discs. Most Blu-Ray players have DVD support, which means they can play DVDs as well as Blu-Ray. Unfortunately, the DVP3982 is not a DVD player, not a Blu-ray player, therefore it cannot support this format.

Standard DVDSs are read by a red laser while blue ray DVDs are read by a blue laser (hence the name). The blue laser diode is likely to be faulty and therefore standard dvds work but blue ray dvds do not. This is not an easily obtainable or replaceable part.

According to the Vizio website, your VBR231 CAN play DVDs the same way a lot of Blu-Ray players can. The site blurb suggests the VBR231 is backwards compatible - which means your player should be able to play DVDs as well as Blu-Ray. Generally, most Blu-ray players can play DVDs if they are backwards compatible with them.

I do know Blu-Ray discs will NOT work in most standalone DVD decks.

MODEL NUMBER: VBR231

*Model Features:
* Full HD 1080p Video Playback
* Integrated Dual Band Wi-Fi - 802.11n
* 7.1 Digital Audio Output
* Backwards Compatible (see below)

*Compatibility:
* Plays Blu-ray and DVDs, Audio CDs, MP3s and Jpegs
* Multi-Channel 7.1 Audio Output via HDMI
* Playback and Enjoy Media via back USB Input (JPEGs and MP3s)

*Outputs:
* HDMI 1.3
* Component Video (YCrCB)
* Composite Video
* Stereo Audio
* Coaxial Audio
* Optical Digital Audio

I hope that helps somewhat.

Ive only had mine for 2 months and it just stopped playing dvds all together. I had a brand new dvd playing, went to switch it to another new dvd movie and it wouldnt read it or any other dvd Ive tried. I havent tried a blu ray disc yet.

DVD players can't play Blu-Ray . You need a Blu-Ray player for that .

Have you put in the correct region Blu Ray disc ?
Is it all disks not playing ?
Try cleaning the laser head with a cleaning disk.

No. Blu Ray media requires a different device technology provided only by Blu Ray players. It will not play on a DVD player.