Moderator: Ken Berry

Posts: 14383
Joined: Wed Jan 26, 2005 7:20 am
operating_system: Windows XP Pro
System_Drive: C
32bit or 64bit: 32 Bit
motherboard: Equium P200-178
processor: Intel Pentium Dual-Core Processor T2080
ram: 2 GB
Video Card: Intel 945 Express
sound_card: Intel GMA 950
Hard_Drive_Capacity: 1160 GB
Location: Birmingham UK

Post by sjj1805 »

lakewud wrote:..........

But, of course...I'm curious as to this other way, my way, I don't lose any noticeable quality ( as - I'm guessing here - it is only rendered the once, just have to go through the same long process each time i want a copy ).

So, what if, i have two or more saved projects..both totally different but wanting them on the same disk..how can i ensure the best possible quality in this case, i can create video file for one...automatically goes onto the timeline..but how do i bring in the other project - unless I've rendered it first ( and to my mind..this loses the quality ).

Only ask, because find it frustrating..everyone wants the best possible quality after they have spent many days and weeks on a project. I have tried before doing it the way that's mentioned on here, this is rendering it first and then making my copies from there..but the quality I really noticed deteriorated...because it must be rendering twice?
Simply, you have to do your homework first.

It really all starts at the capturing stage.
If you're source material is from a DV camcorder (Not a DVD camcorder)
then you prepare your editing in DV. You then render your edited project to a DVD compliant MPEG file using bit rate settings designed to fit the completed DVD disc.
If you're capturing from an analogue source such as a TV card then you need to try and work out in advance what your finished file size is likely to be and capture accordingly.

Lets say you were recording a TV program containing commercials and you intend to remove those commercials. Let us consider a project where the TV program is 2 hours long and contains 5 minute advert intervals every 15 minutes. Your recording will contain 6 x 5 minutes of adverts - total 30 minutes. Subtract those 30 minutes from the original 2 hours and you have a video of 90 minutes duration.

Here at the recording stage you need to set your bit rates to the appropriate quality for 90 minutes. Different recording programs will have ready made recording templates such as standard play, long play, extra long play and so on. Your Recording software will also (somewhere) identify the chosen quality with the duration associated with it
eg standard play = 60 minutes, long play = 90 minutes, extended long play = 120 minutes.

When you have now removed the adverts in the edit stage you can render your new video - using smart render - so that most of the original video is simply copied in its original format with no loss of quality. If you have joined the pieces of video back together where the adverts were removed with transitions, then those parts get rendered. Similarly if you have added anything new such as titles or sound effects, those parts also get rendered.

When you now move on to the next stage - authoring the DVD (i.e. creating Menus, chapter points and so on) the video itself is already prepared and so the video itself remains unaltered. Obviously you will see some rendering taking place but that is the Menus being rendered and not the underlying video.

So going back to your query regarding placing two separate video (projects) onto one DVD, in the initial preparation stage (capturing) you have to consider the combined total duration of all of the videos that will form your completed DVD. You must also allow a small overhead to allow for the space occupied by the DVD menus themselves.