dvd burner?

Question

whne you burn a dvd, does it burn according to the time? like a dvd with 2hours will burn 2 hours of video ?
or does it do by size? like it would burn a video with certain bytes.

if it does by mins, is there anyway to compress video files withot losing quality?

thanx!

Answer 1

Burns by size of file as to how long it takes.

Answer 2

All burners are limited based on the amount of information that can be stored on the disc that you are burning to. The time limit on CD's is not so much based on the total time you can burn music to a disc but on the compression of CD quality music. It is commonly known that in the format and compression of CD quality you will get 74 or 80 mins.

Likewise with a DVD you are only going to get 4.7GB on a single layer disc or 8.4GB on a double layer disc. You could easily get more than two hours on a disc if you change the compression or size of the video you are burning to a DVD.

You can compress video in different formats to fit more content on one DVD but as is the nature with compression, you are going to lose out on some of the quality. I recommend going to this website for more information on how to compress DVD video to other formats.

Answer 3

a dvd burner copys the data. so if you have 3gb of data that is what it will copy to the new disc. something to watch for is that some discs are dual layer. what this means is that it has two compressed layers that it copies that data to, so that it will hold more data. you really dont want to compress video data, because you will lose quality. unless you are storing it for uncompressing later then you use a format called iso. which is a compressed image of the disk. some burners have the ability to over burn which is to put more info on the disc than normal. but if your burner is not made for this you can mess up the burner(not talking bout the program but the dvd recorder itself)

Answer 4

Enlisting A Video Encoder
For When It’s Time To Compress & Decompress

Video encoders can compress a video file and save it in a variety of file formats and sizes while retaining most of the visual quality of the original file's images. Compressing video is crucial because just 10 seconds of ordinary NTSC video can gobble up to 300MB of storage space. If you want to distribute video on a CD/DVD, as a streaming video file, or as an email attachment, you need to compress it.

For maximum flexibility an encoder must accept video from various sources, such as a videocassette or digital video camera. You must also be able to save that video file in different file formats. For example, you may need one format to save the video as a streaming video file but a different format to save it to DVD. To decide which video encoder is best for your needs, there are some common and special features you should know about.

Answer 5

Winxmedia DVD MPEG/AVI/Audio Converter

Convert DVD to MPEG1 (VCD),MPEG2 (SVCD), AVI (DivX, XviD, MPEG4, YUV...)
Convert DVD Audio to WAV, MP3(new), WMA(new), ASF (audio)(new), AC3 Audio.
Support MP3 with CBR,VBR, version and many preset quality modes, make converting to MP3 task very easy.
Can Open DVD ,IFO, MPG/VOB files.
Split large video/audio files to volumes according the mode and size you set.
Can select a part of video/audio to convert according to start time and quantity of frames.
Provide luminace filter and deinterlace filter.
You can select audio track and subtitle to convert.
Provide the capability for you to set the resolution of the output video and many other options.

http://www.winxmedia.net/

Answer 6

It records by time. If the file is too large, the quality gets reduced.