|
|
Posted by Frank on 09/26/67 11:56
On 23 Aug 2006 15:44:55 -0700, in 'rec.video.production',
in article <Re: Reliability of DVDs>,
geickmei@tampabay.rr.com wrote:
>
>Frank wrote:
>
>> It could very well be either a data rate problem or a burn speed
>> problem, but any data rate up to 7 or 8 Mbps shouldn't cause a
>> problem.
>>
>> In the case I related above, since the discs were being send to some
>> folks 2000 miles away and I wanted to ensure that they wouldn't
>> experience any playback problems, I took a few extra minutes and
>> surface checked each disc in IsoBuster before I packed them up for
>> shipment. I also tried each disc in three or four standalone
>> (television-attached) DVD players before pronouncing them "okay".
>
>Well, my solution worked for me. The lower data rate had no glitch-ups
>on the more critical player, which is an Akai LCD flat panel with DVD
>player in the side. This player played the video thru just fine, but it
>got out of sync in the audio toward the end! Must be some lousy
>decoder, because the disc played just fine in our other combo player.
>
>SO, I would like this apparently little known fact about DVD to become
>well known, that the encoding bitrate can be too high for some players.
>I don't know why this should be, I just call em like I see em. This has
>been through the crucible of the unhappy bride, so take my word for it.
>The discs that she could not play were fine on our player, so there was
>nothing "wrong" with the discs, but that one factor of how I made the
>discs caused all this trouble.
>
>So why wouldn't this have come up on twelve thousand different forums
>before? Why would Encore make their program work like that?
>
>Gary Eickmeier
This issue *has* come up before Gary, but I guess in the real world it
isn't too often encountered.
I suppose that, at least in theory, if all DVD players, even those
embedded into LCD panels, completely met the DVD-Video spec, which
actually goes up to about 9 Mbps, no one would ever see this
particular problem. In order for a device to legally wear the official
DVD-Video logo, it has to meet the spec, but I guess that some
manufacturers cut corners, use sub-standard parts, don't properly QC
each player before it goes out the door, etc.
Glad that you got it sorted out!
--
Frank, Independent Consultant, New York, NY
[Please remove 'nojunkmail.' from address to reply via e-mail.]
Read Frank's thoughts on HDV at http://www.humanvalues.net/hdv/
Navigation:
[Reply to this message]
|