If am to understand that this refers to frames that are absent on the GOUT, all but the first one (of the Falcon interior) coincide with the spots where the AC3 audio dropped sych with the PCM audio from the DC/Faces set - requiring removal of material from the PCM to realign. Are you certain about the first one, as there seem to be no discrepancies with the two soundtracks at this spot?

I think all of those frames are not only cadence changes, they're LD side changes. LD side changes are usually put where there would be a film reel change. Reel changes are put where a few extra frames here and there won't mess anything up (you will rarely find music playing at a reel change, for example).

How much does a D1 tape hold? 'Cause it could also be that those interlaced half-frames are present like that on the D1 tape.

If I'm understanding correctly, Darth Mallwalker is saying the GOUT has one more frame than the X0 Project (+1:49:14:18 A?). If so, that's not too surprising: it's from something one step above the LDs. However, until the GOUT was released, I don't believe any version was more complete than the DC/Faces LDs. All the PAL versions had more frames missing (mostly the ones with ugly splices -- another reason why the PAL GOUT should have come from the PAL LD masters). Even the SE LDs had more missing frames. Aside from all the added crap, that is.

Looking at the big picture, I guess what Darth Mallwalker has identified shows that the X0 Project is missing exactly one frame with respect to the GOUT, and the GOUT is missing exactly two frames with respect to the X0 Project. Overall, that means the GOUT is one frame shorter than the X0 Project, right?

The first two DO correspond to side changes referenced to the DC set. However, are those frames also absent from the Faces set? My guess would be no, as I used audio from the Faces to fill in the missing bits between the sides of the DC. So I’m guessing if the audio was there, the missing frames would be too.

For the record, I had to remove a total of 3527 samples at four different points from the PCM track to sample-synch accurately with the GOUT. If I’m not mistaken, this works out to roughly two frames.

Also for the record, only example two (at the transition from side 4 to side 5 in the DC set) corresponds to any of the original reel changeovers (and none on any of the CLV issues). Since the available lengths per side of either a CAV or CLD disc are both greater than that of a typical film reel, the splits in a typical Laserdisc are generally determined irrespective of the reel changeover intervals (unless by happy coincidence one happens to fall in the same place), and usually have more do with loading the disc sides to capacity.

The changeover between reels 5 and 6 occurs exactly at the bottom frame in your post - at the cut between the shot of the R2 unit being lowered into the ship, and the shot looking down on an x-wing (with PA announcement: "All pilots to your stations").

Even the SE DVDs and the Prequel DVDs have missing frames. They are encoding errors. You'll find them on lots of DVDs.

They are encoding errors.

What do you mean by "encoding error"?

DE

Well I haven't looked at the GOUT in detail but on some of the other discs I mentioned there are also missing frames at reel changes. They don't show up in any PC software including video editors. But some of them DO show up on my PS3 for example when I go frame-by-frame. And whats weird is sometimes they will show up and sometimes they won't. It also might be blended in with another frame so it must be some type of interlace vs. progressive encoding issue.

Errors at reel changes is actually fairly common on DVDs. Myself and people I know used to do a lot of audio synching to HD caps and we would often come across this. A broadcast HD cap would often be more 'perfect' than the DVD. The prequel DVDs for example are missing a few frames but the HD broadcasts are not. And we know for a fact that they both originated from the same HD master. Just like the GOUT originated from the same master as the LDs. So its not a master issue.

So I don't really understand the reason for reel change errors. You would think that the physical film reels are something that are far upstream in the workflow from the actual MPEG-2 encoding for the final disc.

What you've described is extremely weird, to the point that (and no offence is intended) I believe you must have be mistaken.

I'm not aware of any circumstances under which you can rip a DVD, load it into, say, VirtualDub-MPEG2, and not see every frame.

Happy to be proven wrong, but if you're only seeing them on your PS3, your PS3 is doing something wacky.

DE

I watched the GOUT discs and I never noticed those frames were missing. I DO know that the Laserdisc of TESB was missing a scene of Lei welding the Millenium Flacon and that was added back to the GOUT DVD disc.