accurate in and out points

winrockpost wrote on 9/3/2004, 7:17 AM

Using one mpeg file and setting in and out points resulting in 5 menu items.
They play accurate in preview but upon burning the in and/or out points are off by a second or more resulting in a srewed up dvd.
Any idea how accurate the in and out points really are. Any ideas ?

Thanks

Comments

JackHughs wrote on 9/3/2004, 9:16 AM

Try this link. It may address your concerns.

http://mediasoftware.sonypictures.com/forums/ShowMessage.asp?MessageID=311360&Replies=1&Page=3

Jan

GaryKleiner wrote on 9/3/2004, 9:31 AM

You cannot set frame-accurate chapter points because Mpeg2 uses I frames as a references. Normally these are set to occur every 15 frames (in NTSC) so your accuracy is -+ 1/2 second.

Gary

johnmeyer wrote on 9/3/2004, 9:46 AM

I reported this exact same problem in a recent thread:

Chapter location in final DVD doesn't match DVDA location

It is identical to the problem you are having. I also sent this as a bug report to Sony, and I encourage you to do the same by clicking on "Support" at the top of this page and then selecting "Email Support."

Sony is trying to recreate this problem and they need a burned DVD that exhibits the problem, along with the original project files. Unfortunately, I "fixed" the problem by going back and moving the chapter points by 1-2 seconds until the problem went away, and then deleted all the files. I have been unable to recreate the problem (so far) with my latest projects.

So, if you have something that is broken, and you can send it to Sony, they seem very eager to look at it.

JackHughs wrote on 9/3/2004, 10:33 AM

Gary,

I believe that it is possible to set frame accurate chapter points in DVDA but it requires an mpeg2 analyser to find the timecode of the appropriate I frames.

Jan

winrockpost wrote on 9/3/2004, 2:23 PM

Already deleted the project and made individual files for each of the buttons ,had a deadline .
(+-) .5 sec tolerance , is this also true if I bring in an AVI and let DVDA do the render or just with existing mpeg.

thanks guys for the info.