MWV File Size

[J.D.]

Hi all,

 

Why do WMV files grow so large when brought into MyDVD? For instance, I can save 16-17 250K, 640x480 WMV files on a 4.7G DATA DVD, but when I try to create a regular DVD, the most I can on a disc is 2-3 files. I understand the files are being re-encoded, but they grow 400-500% in size, and the video looks worse. What gives...

 

J.D.

[bimicher]

Hi all,

 

Why do WMV files grow so large when brought into MyDVD? For instance, I can save 16-17 250K, 640x480 WMV files on a 4.7G DATA DVD, but when I try to create a regular DVD, the most I can on a disc is 2-3 files. I understand the files are being re-encoded, but they grow 400-500% in size, and the video looks worse. What gives...

 

J.D.

 

When creating video DVDs file size is not important. Its the timelength of the video that is the main parameter. A standard 4.7GB DVD holds 60 minutes of video at best quality. Squeezing more then that on the DVD will degrade the quality. WMV video file are highly compressed and have to be uncompressed and encoded to become DVD compliant. When you are copying the wmv to a data DVD there is no uncompressing involved. I convert 90 min. wmv (512x384) to a DVD all the time and the loss of quality is not that bad. I first burn to an iso image file and then use DiscCopier to burn the iso to a DVD. Using this method I can burn a 90 min video to a DVD without too much loss of quality.