Is Half D1 the answer for DVD-5?

[Afterlife]

When not using dual layer discs and still wanting to put > 120 minutes of footage on a disc, if Half D1 the answer?

Im trying to put 6 30 minute short films onto a DVD for presentation, but if I do it like this then each clip has a Max bitrate a little over 3100. (using AniCalc for the conversion, though its not anime).

So the only way to do it where the bitrate doesnt kill the picture quality is Half D1, or simply put fewer clips, or just buy dual layer discs. Which is the best way I dont know, but are there any other solutions for getting more video on the same space?


Thanks!

[Nelson37]

Half-D1, IVTC, Smoothing filters, lower bitrate, DL disks, or less video on disk. These are the options, choice depends on desired goal, and desired quality level. Display medium affects these as well, what looks OK on a 27" TV might not look so good on a 6 foot display projector.

Also take extra care for audio, increased volume levels often necessary in a presentation environment. Subtitles might be a desire for unattended display.

[Afterlife]

So what exactly are the cons to using Half D1? I know the basics, lower resolution allows for a lower bitrate, may not look so good on larger screens (though to be honest, never seen a huge difference)

[adam]

Lower resolution is the main drawback. Another is the fact that you cannot use 16:9 with half-D1 either. 3100kbits isn't necessarily too low for full D1 resolution, it really depends on the source. If it is somewhat compressible and especially if it has a wide aspect ratio, ~3000kbits should be enough.

[Afterlife]

This is the file info from AVI Codec (why cant this program export the into grrrr)

File: 231MB, duration 0:30:01, type AVI, 1 audio stream, quality 47%
Video: 203MB, 948kbps, 25.0fps, 512*384(4:3), XVID = XVID Mpeg-4
Audio: 28MB, 131kbps, 48000Hz, 2 channels, 0x55 = MPEG Layer 3

Region doesnt really matter as most DVD players and TV's play both, but preferably NTSC as that will be the target region.

The DVD will be played on TV's, large room projection devices, etc, while the source isnt HDTV as is, im not expecting that kind of quality, im just wanting standard DVD quality.

As of now my intention was HALF D1 at 3100kbps, but if FULL D1 will work thats awesome. Ill test both but if someone has any suggestions im open for them.

Thanks

[ark]

This is the file info from AVI Codec (why cant this program export the into grrrr)

File: 231MB, duration 0:30:01, type AVI, 1 audio stream, quality 47%
Video: 203MB, 948kbps, 25.0fps, 512*384(4:3), XVID = XVID Mpeg-4
Audio: 28MB, 131kbps, 48000Hz, 2 channels, 0x55 = MPEG Layer 3

Region doesnt really matter as most DVD players and TV's play both, but preferably NTSC as that will be the target region.

The DVD will be played on TV's, large room projection devices, etc, while the source isnt HDTV as is, im not expecting that kind of quality, im just wanting standard DVD quality.

As of now my intention was HALF D1 at 3100kbps, but if FULL D1 will work thats awesome. Ill test both but if someone has any suggestions im open for them.

Thanks

I am using Half D1 ( D2) at 2M Bitrate as a regular feature. I have not been able yet to see any huge difference from Full D1 capture. I get about Four and a Half Hour onto 4.7GB (4.38) DVD-R using 192Kb audio.

[Nelson37]

Make certain you test this on a display size similar to the intended usage. If you have not yet done this you will Instantly understand why when you fire up the large display.

There is no absolute rule. If it looks OK and fits on the disk, then go with it.