Dolby Digital and editing software

[Jerry Jones]

Brian wrote:

"Your 18 min "high quality" DVD-RAM is not recorded at 8800 kbps, but at a variable bitrate between 3000 and 9000 kbps, with an average of 6000 kbps."

Brian, your statement is FALSE.

I have Tecold's BITRATE VIEWER program.

I just opened two MPEG-2 files (beach scenes) recorded by my Panasonic VDR-M30 DVD disc camcorder using the XTRA mode.

File #1:

Num. of picture read: 3540
Stream type: MPEG-2 MP@ML VBR
Resolution: 704*480
Aspect ratio: 4:3 Generic
Framerate: 29.97
Nom. bitrate: 8800000 Bit/Sec
VBV buffer size: 112
Constrained param. flag: No
Chroma format: 4:2:0
DCT precision: 10
Pic. structure: Frame
Field topfirst: Yes
DCT type: Field
Quantscale: Nonlinear
Scan type: ZigZag
Frame type: Interlaced
Current Bitrate: 8417 kbps
Peak Bitrate: 8812 kbps
Average 8302 kbps

File #2

Num. of picture read: 1890
Stream type: MPEG-2 MP@ML VBR
Resolution: 704*480
Aspect ratio: 4:3 Generic
Framerate: 29.97
Nom. bitrate: 8800000 Bit/Sec
VBV buffer size: 112
Constrained param. flag: No
Chroma format: 4:2:0
DCT precision: 10
Pic. structure: Frame
Field topfirst: Yes
DCT type: Field
Quantscale: Nonlinear
Scan type: ZigZag
Frame type: Interlaced
Current Bitrate: 8327 kbps
Peak Bitrate: 8593 kbps
Average 7620

Your figures are inaccurate.

Brian also wrote:

"No set top player/TV combination (not HD), wil resolve anything better than 6000 kbps, so the different between 8000 and 8800 kbs is totally irrelevant."

Again, your statement here, Brian, is FALSE.

Your statement "C" is correct, but not relevant.

Your question "D" is not relevant.

Your statement "E" is not relevant.

Your statement "F" is not accurate. I've repeatedly stated that DVD disc camcorders are ideal for projects that **don't** require multi-layer compositing. Please don't try to twist the argument.

Jerry Jones

http://www.jonesgroup.net

[Brian Ellis]

Originally posted by Jerrold Jones
Your statement "F" is not accurate. I've repeatedly stated that DVD disc camcorders are ideal for projects that **don't** require multi-layer compositing. Please don't try to twist the argument.

Jerry Jones
http://www.jonesgroup.net

You will be pleased to know that this is my last post in this thread. You are being totally dishonest. In an earlier post you said:

I happen to own the Panasonic VDR-M30.

This model records in MPEG-2 format to mini DVD-R or mini DVD-RAM discs.

If I choose to edit this video, I use Ulead MediaStudio Pro 7.0, which can natively edit MPEG-2 video.

When inserting titles and graphics into an MPEG-2 edit project, one needs to set the maximum bitrate at 9800 to get the best quality possible.

When finished, the result can look as good or even better than what one can get with single-chip MiniDV camcorders.

Therefore I am not twisting the argument.

[Jerry Jones]

To clarify, I don't consider a few titles and simple graphics to be significant "multi-layer compositing."

As my statement indicated, one can set the maximum bitrate to 9800 to get the best quality possible for a project that includes a few titles and graphics and the quality will be outstanding using DVD camcorder source video.

The 9800 setting will allow Ulead MediaStudio Pro's Smart Render technology to not re-render any MPEG source file with a lower bitrate.

In addition, any titles to be used in addition to the DVD camcorder source files will be rendered at 9800 kbps, which will ensure high quality.

The same can be said for any simple graphics.

The type of project I *would* consider as having significant multi-layer compositing would be a project that includes the type of very sophisticated multi-layer graphics that might require assembly in a compositing application such as Adobe After Effects or BorisFX.

For that type of project, I would consider the DV format to be a more logical choice.

I don't take offense at your accusation of dishonesty because your pitiful lack of understanding is so evident by your own remarks.

Jerry Jones

http://www.jonesgroup.net

[Flying dutchman]

My 2 cents worth:

I think there's a LOT of amateur videographers out there that simply want to get the contents of their camcorders on a DVD with no editing whatsoever.

These people used to hook up their camcorders to their VCR's in the past and simply press "rec". If they can now copy a DVD-R with drag-and-drop and then re-use the pricey little media I think they'll be perfectly happy.