[George Wing]

What type of “Editing” do you plan to do? Straight cuts, or something more such as compositing and adding titles, etc…?

Regards,
George

[George Wing]

Those numbers look to be in line with what I said earlier. Thanks for the confirmation…

Regards,
George

[George Wing]

It might be a problem with the discs, or it might just be the way the discs were burned.

If you are using NERO, did you select the DVD-VIDEO option, or did you simply create a DVD-DATA disc, and drag the VIDEO_TS/AUDIO_TS Folders to the DATA disc? When you have a choice (depending on your burning software), you should select the DVD-VIDEO mode over DVD-DATA mode.

Regards,
George

[George Wing]

[oneamproductions] “When I select burn video cd in the tools window it comes up showing the format is mpg1 and when I try the drop down window to try and change it to mpg2 I cannot…..I am not sure of what I did or what I can do….to fix my problem….”

That’s not the process for creating a DVD — you have to launch DVD Architect, and author the DVD accordingly…

Regards,
George

[George Wing]

I’m not sure if I understand completely. But if you have a 24-second clip, and you set the LOOP point at the 23-second mark — it will continue to play from 23 to 24 seconds (looping continuously in one-second increments).

Regards,
George

[George Wing]

[John Kert] “I meant to say: Another way of looking at it is that if you have say 2 1/2 hours DV footage to render and you set 3.8 MBS compression, one gets a useable quality DVD. But with 24P with 3.2 MBS compression one can put on DVD approx. 3 hours of video with the same quality as the 2 1/2 hour at 60i.”

Exactly 🙂

The cadence changes using the 24p templates — so on occasion, usually during fast scenes, the motion won’t be as “fluid”

Regards,
George

[George Wing]

[George W.] “It would appear that the 24p render DID NOT maintain the stated AVERAGE bitrate of 7,200,000bps.”

[Mike Kujbida] “I have no reason to think that it didn’t do that.”

The resulting file size should be a reason to suspect the 24p Render DID NOT maintain the stated AVERAGE bitrate…

[Mike Kujbida] “I’ll do a few more renders tonight trying the various options you suggested and post the results here.”

How did those additional renders turn out?

Regards,
George

[George Wing]

There are a number of different methods you can try — but the solution will depend on your current Authoring program.

Also, are these “pages” going to fit on a single screen (like a menu or slide in a slideshow)? Are they separate assets, or one long video presentation?

If one long video Title, you will be limited to 99 “chapters” per Title (just something to be aware of). You can create multiple Titles to get around the 99 Chapter limit…

Regards,
George

[George Wing]

[Mike Kujbida] “When I rendered this out using a custom DVD Architect NTSC video stream template (VBR of 8,000,000 7,200,000, 3,600,000), the file size was 4.03 GB (4,333,539,328 bytes).
Using the 24p template and the same VBR settings, it came out to 3.37 GB (3,623,215,104 bytes).
Assuming my math is correct, this is a 16% file size reduction.”

Those results are very interesting — as the filesizes (using the same bitrates) should be about the same. It would appear that the 24p render DID NOT maintain the stated AVERAGE bitrate of 7,200,000bps. Perhaps using the 2-pass option would give closer results (as the first pass does the analysis, and the 2nd pass encodes accordingly). Or if you use the same CBR Bitrate (DVDA and DVDA 24p Templates), you should get files that are about the same size.

The bottom line is that in order to reduce size, you have to lower your encoding bitrate (either CBR, or AVERAGE VBR).

The 24P allows the encoder to allocate the bits-per-second to less frames (24 vs. 30), and so that’s why you might get better looking results (using the same bitrates).

It’s similar to folks sometimes getting confused by thinking that lowering resolution to 352×480 or 352×240 will produce smaller files — but that is NOT true either. In other words, if you use the same bitrates to encode a 60-minute video at 720×480, and a 60-minute video at 352×480 or 352×240, you will end up with about equal filesizes.

Regards,
George

[George Wing]

Instead of using Chapter END-ACTIONS or Overrides, I would setup some Chapter Playlists. Then link to the Chapter Playlist when you only want a single chapter (or several chapters that you can add to a Chapter Playlist).

This should work (unless you have more than ~18 Chapter Playlists).

Regards,
George