A friend gave me a home movie on DVD asking me to add chapters and a menu. I imported his DVD content into VideoStudio and it appeared he had 24 chapters on his disk. To me they all looked identical so I deleted all but the first one and proceeded to make 3 chapters, add titles and transitions to the start of each chapter.
Then I went to Create Disk and added the menu but when it came time to burn a DVD, it says the file is 7gb. My DVD-r and the DVD the original files came from are 4.7 gb. How's this possible? I feel like I'm trying to put the genie back into the bottle!
What am I missing and what do I need to do?
File size seems to have grown a lot.
Moderator: Ken Berry
Re: File size seems to have grown a lot.
You are using a higher bitrate (less compression) than the original. What's the total playing-time? Is your audio LPCM (uncompresed) or Dolby (compressed)?
If you right-click on the video in the timeline, you should see the properties, including the current (old) bitrate. If you set your Project Properties to match, you should get approximately the same compression.
There is also a check-box (somewhere) that says something like "Do not convert compliant files". If that works for you, it's a better option.
When you compress with a higher bitrate you can get higher quality, although you can't improve quality simply by re-encoding at a higher bitrate. In fact, you always loose quality when you re-encode (re-compress).
Just for reference, commercial DVDs typically have a video bitrate of around 6000 kbps (6Mbps). At that bitrate, you can fit about 90 minutes of video with Dolby audio on a single-layer DVD. (Most commercial DVDs are dual layer.) If you reduce the bitrate to squeeze more than about 2 hours of video onto a single-layer DVD, you will probably start to notice quality loss.
-------------------
You can estimate file size with the following formula:
File Size in MB = (Bitrate in kbps x Playing Time in minutes) / 140
(You need to know the total combined average bitrate of the audio and video.)
If you right-click on the video in the timeline, you should see the properties, including the current (old) bitrate. If you set your Project Properties to match, you should get approximately the same compression.
There is also a check-box (somewhere) that says something like "Do not convert compliant files". If that works for you, it's a better option.
When you compress with a higher bitrate you can get higher quality, although you can't improve quality simply by re-encoding at a higher bitrate. In fact, you always loose quality when you re-encode (re-compress).
Just for reference, commercial DVDs typically have a video bitrate of around 6000 kbps (6Mbps). At that bitrate, you can fit about 90 minutes of video with Dolby audio on a single-layer DVD. (Most commercial DVDs are dual layer.) If you reduce the bitrate to squeeze more than about 2 hours of video onto a single-layer DVD, you will probably start to notice quality loss.
-------------------
You can estimate file size with the following formula:
File Size in MB = (Bitrate in kbps x Playing Time in minutes) / 140
(You need to know the total combined average bitrate of the audio and video.)
[size=92][i]Head over heels,
No time to think.
It's like the whole world's
Out of... sync.[/i]
- Head Over Heels, The Go-Gos.[/size]
No time to think.
It's like the whole world's
Out of... sync.[/i]
- Head Over Heels, The Go-Gos.[/size]
Re: File size seems to have grown a lot.
Thank you.
I tried changing all the project properties to match the file properties and my video will now fit on the DVD. It's 1 hour 51 minutes and what really made it fit was changing the MPEG Settings to the lowest (Good) setting available.
So many variables
I tried changing all the project properties to match the file properties and my video will now fit on the DVD. It's 1 hour 51 minutes and what really made it fit was changing the MPEG Settings to the lowest (Good) setting available.
So many variables
-
lata
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Re: File size seems to have grown a lot.
Hi
Go to Preferences (F6)
Tick the box—Show Messages when inserting First Video…………
When you add a compliant Mpeg2 video file to a NEW project you will receive a message to mach the project properties.
When you import a DVD you will receive this message to match your project properties to the video files properties.
When you Share Create Disc – DVD the properties set here will be the same.
Your files should fit to disc.
My Quick Guides give a workflow showing various options.
Go to Preferences (F6)
Tick the box—Show Messages when inserting First Video…………
When you add a compliant Mpeg2 video file to a NEW project you will receive a message to mach the project properties.
When you import a DVD you will receive this message to match your project properties to the video files properties.
When you Share Create Disc – DVD the properties set here will be the same.
Your files should fit to disc.
My Quick Guides give a workflow showing various options.
Re: File size seems to have grown a lot.
OK. I've done that this morning and will check out your quick guides.lata wrote:Hi
Go to Preferences (F6)
Tick the box—Show Messages when inserting First Video…………
Obviously video editing is a little new to me but I've been using CorelDraw since ver 2.0. My how things have grown!
