Tech Talk Discuss PC Hardware, Software, Internet and Other Technology

DVD File Size

Old 09-11-05, 07:00 PM
New Member
Thread Starter
Join Date: Nov 2001
Location: Central Jersey (no I don't know Tony Soprano)
Posts: 10
DVD File Size

In a further effort to offload my 3 year olds programs from the Direct TV Tivo I can off load 1 half hour program to my digital camcorder. From there, I use firewire to load it to the computer. Using Roxio Media Creator 7.5 to cut out commercials and burn the DVD.

My question is why are the file sizes so huge. 1 half hour show is 1.7 GB. That means I can only get two shows on a single layer disk and 4 on the double. Is this normal, the quality is only fair so I'm surprised that the files are so big. I wouldn't mind the size if the quality were as good as the Tivo. The quality is not even as good as copying the show from the camcorder to the regular VCR.

Any thoughts?
exdj is offline  
Old 09-12-05, 12:44 AM
DVD Talk Legend
cultshock's Avatar
Join Date: Oct 2002
Location: True North Strong & Free
Posts: 11,856
One thought: what format does the audio end up being in? For example, PCM takes up a lot of room. I'm by no means an expert in this subject, but this is just one possibility I'm throwing out here.
cultshock is offline  
Old 09-12-05, 06:43 AM
DVD Talk Legend
Drexl's Avatar
Join Date: Feb 2001
Location: St. Louis, MO
Posts: 15,978
I thought of another possibility.

Is the bitrate constant, or does it change like on commercial DVDs? If it's constant, I would think that since the recording is done on the fly, the bitrate can't be optimized and tweaked to use the bits more efficiently, so it has to be set high enough to handle moments when more bits are needed.
Drexl is offline  
Old 09-12-05, 07:21 AM
DVD Talk Godfather
DVD Polizei's Avatar
Join Date: Jan 2002
Posts: 52,192

Best (1 hour)
High (2 hours)
Medium (4 hours)
Basic (6 hours)

Best is about 1MB/sec. High is around 500KB/sec, and so forth. TiVo doesn't have official specs on the bitrate, which is odd. And yes, as far as I know TiVo has CBR on all of their units.
DVD Polizei is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread

Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.