Burning CDV or SCVD
When people talk about burning movies on disk, you probably think of DVDs. After all, the DVD format is very popular in the US and many over-hyped computer commercials taut how easy it is to burn your movies onto a blank DVD disk.
However, burning a DVD is not necessarily an easy or inexpensive endeavor. While the price of computer DVD writers and blank disks are coming down rapidly (and will soon be as ubiquitous as CD-writers), burning your own DVD can be pricey. DVD writers cost about $300 and good DVD media still costs over $4 (8 dollars in the store).
To further confuse the picture, DVD (as a recording format) has not yet matured. There are several different disk formats (DVD-R, DVD+R, and DVD-RAM) and each has variable compatibility with set-top DVD players. In addition, every brand of blank DVD has different compatibility Ö a homemade movie burned onto a Verbatim DVD-R may play on different DVD players than the same movie burned on a Pioneer DVD-R.
Enter the VCD
If you donít want to spring for a DVD writer, there is a cheaper alternative. Using your computerís CD-writer you can burn your movie onto a normal CD-R blank, and create a VCD, or ďvideo cd.Ē This format is very popular in Asia, and has been around longer than DVD. Part of VCDís popularity is that these movies are burned onto normal CD blanks Ö cheap CD-Rís that you can buy for 15 cents each! The affordability of VCDs allows you to experiment and distribute your video to friends at very low costs. These VCDs will play in most tabletop DVD players, though some older DVD players have problems recognizing them.
Whatís the catch?
The video quality of a VCD is much lower than a DVD. Thatís because a CD-ROM can only hold 650 Megs of data, compared to DVDís 8 gigs (for a dual-layer DVD). To fit video into that tiny space, VCD video is highly compressed and runs at 352x240 resolution (compared to DVDís resolution of 720 by 480). The picture quality for a VCD is roughly comparable to VHS tape. However, with VCDís you may see some compression artifacts (edge blockyness) during dark, fast-motion scenes. VCD sound quality, however, is excellent and full stereo.
A VCD can only hold 76 minutes of video, so VCD movies are typically split over two CDís. You can think of a VCD as the video equivalent to an audio CD Ö as they both hold only 76 minutes of data.
How do you make a VCD?
To make a VCD, you need to encode your video into VCD-compliant MPEG1 video file. Many video editing software packages will let you export your final movie directly into this video format, and some will even burn the VCD for you. The major burning software (Roxio and Nero) will both burn VCDs, though you may need an encoder to create the MPEG1 file first.
What is MPEG1 video?
MPEG1 video is a compression algorithm that yields very good video at low bit rates. Better yet, itís non-proprietary (neither Microsoft, Apple, nor Real own it) so you can think of MPEG compression as the video equivalent of MP3 music compression. DVDs themselves are encoded with second generation MPEG2 compression format -- this encoding format yields fantastic quality, but generates large files sizes and takes more processing power to encode/decode.
To convert my digital video files into VCD, I either export the video out of Adobe Premiere as a VCD file, or I use the TMPGE Tsunami encoder. This encoder is a great piece of software that I use almost daily to convert my digital video DV-AVI files into MPEG1 files for VCD and MPEG2 for DVD. I can also compress my videos into smaller MPEG1 files for watching on my PocketPC.
Burning the VCD
After encoding your video(s) into the appropriate MPEG1 format, you can then burn it onto a CD-R. To burn a VCD, you have to tell your burning program to specifically burn a VCD. You canít just copy the files onto a CD-ROM and expect it to play ... the way that VCDís are burned is much different than a normal CD-ROM. You have to tell your burning software to specifically burn a VCD. Fortunately, most burning software have helpful wizards to walk your through this.
Watching on your DVD player!
Once youíve created your VCD you can pop the disk into your DVD player and watch it. Keep in mind that DVD players can be finicky when it comes to home-made VCDs (this is also true of home-made DVDs) and you may have to experiment with different brands of CD-R media until you find one that your player likes. To find out which media is compatible with your DVD player, you may want to read the user-comments left at VCDhelp.com. From my experience, the cheapest CD-Rs seem to work the best. Also, among the DVD players that Iíve tested, the Sonyís had the most problems recognizing disks, while my Pioneer player will read anything you throw at it.
What about SVCD?
SVCD, or ďSuper video CD,Ē works just like a VCD and is also written onto blank CD-Rs. However, SVCDs are created with the higher quality MPEG2 compression (similar to DVD encoding) with higher 480x480 resolution. The resulting video looks much better than VCDs, but still worse than DVD. Using this format, you can fit about 35 minutes of video onto a CD. Fewer DVD players can actually play SVCDs, but if yours can, then this is a great format for showing off your home movies to friends as the video quality is pretty great.
You can find more useful home-video "tips and tricks" like this one at www.mightycoach.com - they even have an online-video course that teaches you to edit video on your home computer!