No Closed Captions on Sony Blu-ray Players

Rev1979

New member
I have a Sony BDP-BX58 and a BDP-S370

Neither will display closed captions on DVDs made with VRD

These units will display CC on "store bought" DVDs ... IF the connection is video (composite), OR a component connection is set to 480i (does not work on anything else)

Does anyone have an explanation (or even a fix)?

Note: CC on DVDs made with VRD will display on other DVD Players (I have two Philips and a GE).
 

Dan203

Senior Developer
Staff member
Are the source videos TV programs? The way they store CCs in commercial DVDs and the way they store them in TV programs is slightly different. Most DVD players support either one, but apparently your Sony does not.

Dan
 

Rev1979

New member
Are the source videos TV programs? The way they store CCs in commercial DVDs and the way they store them in TV programs is slightly different. Most DVD players support either one, but apparently your Sony does not.

Dan
Thanks for your input.

Yes, TV programs (recorded on Beyond TV with a Hauppauge tuner)

FWIW, I just tried copying a DVD I own on a DVD+RW, and it plays CC on the Sonys ... only at 480i on Composite ... no CC on Component.

BUT, MediaInfo shows the following on the Mpegs used to make the DVDs (they look the same but different displays):

TV Show (No CC on the Sonys)
Text
ID : 224 (0xE0)-DVD-2
Format : EIA-608
Muxing mode : DVD-Video
Muxing mode, more info : Muxed in Video #1
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)

Commercial DVD Ripped to mpeg then made DVD on VRD (CC on Composite and 480i Component)
Text
ID : 224 (0xE0)-DVD-2
Format : EIA-608
Muxing mode : DVD-Video
Muxing mode, more info : Muxed in Video #1
Bit rate mode : Constant
Stream size : 0.00 Byte (0%)
 
Last edited:

Dan203

Senior Developer
Staff member
It's about how the CCs are stored. It's been a while since I read up on this, but I believe the difference is that DVDs store an entire CC string at the start of a GOP while TV shows break it up and store 2 characters per video frame. The actual content of the streams is identical, they both conform to the 608 standard and have the same stream ID, it's just that for some reason TV programs store them in smaller chunks. This may be some legacy hold out from when captions were analog and stored in the VBI at the top of each frame.

Unfortunately VideoReDo can not convert from the TV method to the DVD method at this time, so there is nothing that can be done to fix this issue in VideoReDo.

Dan
 

Rev1979

New member
It's about how the CCs are stored. It's been a while since I read up on this, but I believe the difference is that DVDs store an entire CC string at the start of a GOP while TV shows break it up and store 2 characters per video frame. The actual content of the streams is identical, they both conform to the 608 standard and have the same stream ID, it's just that for some reason TV programs store them in smaller chunks. This may be some legacy hold out from when captions were analog and stored in the VBI at the top of each frame.

Unfortunately VideoReDo can not convert from the TV method to the DVD method at this time, so there is nothing that can be done to fix this issue in VideoReDo.

Dan
Thanks for the info ... final answer for me ... stay away from Sony ...
 

Dan203

Senior Developer
Staff member
OK I talked to DanR about this and he pointed out that we do actually convert CCs from the TV format to the DVD format, that's why when you check the include CCs box it forces the maximum GOP to 15 because the CC buffer at GOP level used by DVDs only has enough room to hold the characters from 15 frames. (That could another reason TV stations use the per-frame method, to allow longer GOPs)

So it would appear that these DVDs should work. Can you please use the Trim & Copy feature to grab the first 50MB of the first VOB on the disc and upload it to our FTP so we can make sure everything looks like it should?

http://www.videoredo.net/msgBoard/showthread.php?t=15807

Dan
 
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