Mydvd Shows Larger File Than Is Present

sheabo35, on 17 January 2012 - 08:49 AM, said:

Hi, I've been using Roxio for a long time and this is the fist time I've come across this problem.

I capture a TV program in Windows 7 format. I convert it to a .DVRMS file and edit it with VideoReDo to output an mpeg file.

The file is 4413 MB, but when I try to burn to an ISO file with MYDVD, it shows as 4677.8 MB used and 22.2 MB free at an LP quality for the 4.7 GB setting to fit to disc

When I set it to 8.5 GB setting and fit to disc it indicates 8190.9 GB used and 349.1 MB free with a quality of HQ.

Why is it indicating such a high size (8190 MB) when the original is only 4413 MB? I record with Windows Media Center at a "Better" setting.

Any Thoughts?

Sheabo35

File size means almost nothing when you are talking about video. For the same original file, you can create video files of dozens of different sizes depending on the format, bitrate, compression etc.

A standard 4.7GB video DVD (that can be played on any DVD player) can hold about 60 minutes of video at best quality. If your source file is longer then it will be compressed to fit on the DVD and you will of course lose some quality.

Your original source file is highly compressed and when you burn it to a DVD it is first uncompressed and then encoded to the DVD standard mpeg2 format. This may or may not involve compression depending on the quality you choose.

BTW, Fit-to-disc is about the worst choice to make when trying to burn to DVD as it gives the worst quality when you burn DVDs that are longer then 60 minutes

What is Windows 7 format? When you record/capture video you should always do it at the "best" setting that is available so that you will always start with the highest quality. Once your video has been compressed you can never get back the original, higher quality

Edited by myguggi, 17 January 2012 - 09:34 AM.

#1 sheabo35

#2 myguggi

#3 sheabo35

0 user(s) are reading this topic