strange dvd?

[jamespoo]

hello i have a korn dvd here and i just watched it on my pc and the resolution on the video is only 352x480 4:3 i never known any dvd with this size before

i thought all dvds where 720x480 or 720x576 with an aspect ratio of 16:9 or 4:3

why dose this dvd use 352x480 and are there other dvds like this ?

[El Heggunte]

https://www.videohelp.com/dvd

PAL

Video:
Up to 9.8 Mbit/s* (9800 Kbit/s*) MPEG2 video
Up to 1.856 Mbit/s (1856 Kbit/s) MPEG1 video
720 x 576 pixels MPEG2 (Called Full-D1)
704 x 576 pixels MPEG2
352 x 576 pixels MPEG2 (Called Half-D1, same as the CVD Standard)
352 x 288 pixels MPEG2
352 x 288 pixels MPEG1 (Same as the VCD Standard)
25 fps*

NTSC (NTSC Film)

Video:
Up to 9.8 Mbit/s* (9800 Kbit/s*) MPEG2 video
Up to 1.856 Mbit/s (1856 Kbit/s) MPEG1 video
720 x 480 pixels MPEG2 (Called Full-D1)
704 x 480 pixels MPEG2
352 x 480 pixels MPEG2 (Called Half-D1, same as the CVD Standard)
352 x 240 pixels MPEG2
352 x 240 pixels MPEG1 (Same as the VCD Standard)
29,97 fps*
23,976 fps with 3:2 pulldown = 29,97 playback fps (NTSC Film, this is only supported by MPEG2 video)

[DB83]

It's called half-d1. It's advantage is that you can lower the birate so get more video on to a single-layer disk.

But is this a commercial dvd or a burnt dvd-r/dvd+r ?

[jman98]

If you record more than 2 hours to disc, most if not all standalone DVD recorders switch to half-D1 mode because of the lower bit rate necessary to give you longer recording time (lower bit rate can be disguised somewhat if the resolution is lowered). I'd guess that this DVD was made on a DVD recorder.

I have seen such a resolution used on a commercial DVD, but it was only for a very quick blurb with the studio name and it was a foreign DVD. The rest of the DVD was normal resolution. I've never seen that used on a commercial DVD in North America.

[manono]

...are there other dvds like this ?

It's rare but I've seen a few commercial DVDs with that resolution. Foreign (non-US) ones.

[jamespoo]

It's called half-d1. It's advantage is that you can lower the birate so get more video on to a single-layer disk.

But is this a commercial dvd or a burnt dvd-r/dvd+r ?

this is the dvd

http://en.wikipedia.org/wiki/Deuce_%28DVD%29

bitrate is

Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@Main
Format settings, BVOP : Yes
Format settings, Matrix : Custom
Format settings, GOP : M=3, N=15
Duration : 4mn 7s
Bit rate mode : Variable
Bit rate : 3 466 Kbps
Maximum bit rate : 6 000 Kbps
Width : 352 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 fps
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan order : Top Field First
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.684
Stream size : 102 MiB (83%)

Audio #1
ID : 189 (0xBD)-128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : DVD-Video
Duration : 4mn 7s
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -106ms
Stream size : 5.67 MiB (5%)

Audio #2
ID : 189 (0xBD)-129 (0x81)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : DVD-Video
Duration : 4mn 7s
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Delay relative to video : -210ms
Stream size : 13.2 MiB (11%)

that is one of the music videos copied of the dvd

[sanlyn]

Yep. Half-D1 issue. I have a few of 'em myself, some budget compilations of old mysteries and b-grade westerns. 8 hours on a retail DVD at half-frame is par for the course on these "12 movies for $6.95" issues. Even on a CRT you can see the softer image and lower contrast from that frame size and bitrate. But the method does help reduce low bitrate artifacts one would get on a bigger frame. Some studios do a better job than others.

[jman98]

That's an old DVD. Is it a single layer DVD by any chance? There were a lot of weird things done in the early days of DVD and maybe this is just a bad decision that's a product of the times when it was originally produced. I'm not sure when dual layer DVDs first came out but I've got an old version of the Stargate movie that has half the movie on one side and the other half on the other side of a disc where both sides are DVD-5. This is one of the oldest DVDs in my collection.

[DB83]

That's an old DVD. Is it a single layer DVD by any chance? There were a lot of weird things done in the early days of DVD and maybe this is just a bad decision that's a product of the times when it was originally produced. I'm not sure when dual layer DVDs first came out but I've got an old version of the Stargate movie that has half the movie on one side and the other half on the other side of a disc where both sides are DVD-5. This is one of the oldest DVDs in my collection.

Ah. The old 'flippers'. I got a few of those.

[jamespoo]

thx guys now i know