Finding bitrate from every format files?

[nattawat]

Right now I can only find the video/audio bitrate from AVI file using AVI2Clipboard, but that's it. I have other files like MPEG, DAT, WMV, etc... that I want to know about the bitrate.

Actually, my real problem is the program SUPER. It requires me to select the bitrate of the output file. If the input file have lower bitrate than the output file, I will have an oversized file with the same quality. But if I have the bitrate lowered too much, I will have less quality, which I would really prefer having 100% same quality but different format.

I am trying to convert .DAT (VCD) file into AVI with as lowest quality loss possible. I can use avi.NET to convert MPG/MPEG files to AVI with no quality loss at all, and I really prefer that... but it won't work for other formats.

If there is a way to find bitrate for other video format, that would be great.
If there is a program that can convert between many file types and can convert at no quality loss, that would also be great.
If there is a program to convert VCD file (.DAT) into AVI file with no quality loss, that would also be awesome


Thanks in advanced,
Nattawat

[Baldrick]

mediainfo or https://www.videohelp.com/tools?s=38#38

and you only need the playing time and file size to calculate the bitrate manually or using a bitrate calculator.

virtualdub can convert vcd dats to avi. set the bitrate in the divx or xvid settings.

[jagabo]

You can use AVICodec or GSpot to get the bitrates of many different formats.

I am trying to convert .DAT (VCD) file into AVI with as lowest quality loss possible.

But the source bitrate is immaterial when converting from one codec to another. Different codecs require different bitrates to get similar quality. And any time you convert from one lossy codec to another you will get some loss of quality.

The easiest way to assure you get the quality you want with the minimum file size required for that quality, with any source, regardless of frame size, codec etc., is to use constant quality encoding. With Divx or Xvid that is the target quantizer mode. Pick the quality (quantizer) you want, out will come a video with exactly the right bitrate for that quality.

[nattawat]

I tried converting with virtualdub using XviD codec, this is what I found:

"Statsfile not found!"
"Cannot start video compression:

The operation is not supported.
(error code -1)"

[nattawat]

I tried converting with virtualdub using XviD codec, this is what I found:

"Statsfile not found!"
"Cannot start video compression:

The operation is not supported.
(error code -1)"

Actually, the problem is now fixed.

However, another problem I got is the file size... it is about 700MB large for 68 minutes video file! I am expecting it to be around 350MB, but I cannot change any settings for XviD format, the only thing I'm allow to change is the quantizer(sp?) -- which is set to 4.

[jagabo]

Target quantizer mode doesn't let you specify the file size or bitrate. You specify the quality you want and the file size comes out to whatever size is necessary to get that quality.

Quality here refers to how closely the output will match the input. If you take a crappy video and encode it with a high quality (low quantizer) setting the codec will make sure that it accurately encodes every little defect of the source.

Use a higher quantizer to get a smaller size (and less quality).

If you want a specific file size use 2-pass encoding with the bitrate that will give you that size. Use a bitrate calculator to determine the required average bitrate. That will give you the best quality for the specified file size -- but you don't know what that quality will be beforehand.