Anamorphic DVD player question (1 Viewer)

[JoanPablo_T]

Quick question..

I have a Sony DVD player (550D) and a Sony 32" HD Set (4:3 aspect ratio with an auto 16:9 feature)

I have the DVD player set to 16:9, so when an anamorphic DVD is being played, the TV will automatically change to 16:9. ok..cool!, BUT the signal the DVD player is sending out has some sort of 'flag', that tells the TV to change to 16:9. This is where it's get tricky... this 'flag', is it a REQUIREMENT for a DVD player, or a choice the manufacturer has when designing the unit?

Basically, I am simply trying to get a definitive answer if ALL DVD players are required to send out the anamorphic 'flag' for 4:3 TV's that have an auto 16:9 feature to receive, and adjust accordingly? Thanks!

JP

 

[Michael Reuben]

I believe the "flag" you're referring to is a function of the disc, not the player. And yes, it's up to the disc's producers whether or not to include it.
M.

 

[Adam Barratt]

The WSS (Wide Screen Signaling) feature is based on the ITU-R BT.1119, ETSI EN 300 294, IEC 61880 and EIA-J CPR1204 standards. I don't believe these are mandatory standards for televisions, but as a function of the recorded video signal (signals embedded on blanking lines 23 [PAL] and 20/283 [NTSC]) and the playback monitor not the DVD player, any DVD player should output this widescreen trigger with suitably encoded video material.

Adam

 

[JoanPablo_T]

Adam, follow up question, what if the player does not pass the signal at all? does that mean it doesn't meet DVD standards?

thanks

JP

 

[JoanPablo_T]

-and thank you Michael for the respnoce as well!

 

[JoanPablo_T]

Adam, as another question.. I do have a log in for the ITU. if you could provide a link or the downloaded spec would be great. I always have trouble navigating their website.

thanks!

 

[Adam Barratt]

Joan, try this link .
If the DVD player isn't outputting the WSS signal, then there's some serious corruption of the picture going on somewhere (although this wouldn't necessarily mean the player didn't meet DVD standards). I don't imagine these signal lines would be selectively corrupted (rather, all would), so you would probably see either no picture/static or a virtually unwatchable image.
Certainly, whether the WSS signal was usable or not would be the least of your problems.
Adam

 

[JoanPablo_T]

thanks Adam!, The picture output of this particular DVD player is fine, it's just not passing the WSS signal. oh well!

JP