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SVCD supports MPEG-2 video, 2/3 D1 video resolution (480 x 576), MPEG-1 and MPEG-2 Audio Layer II, two-channel audio, variable-bit-rate (VBR) encoding, overlay graphics and text, and a 2X speed CD-ROM drive with a multiple tray.

The current VCD format, by contrast, provides for resolution of 352 x 288 based on MPEG-1 video. Under SVCD’s overlay-graphics and text technology, text would be multiplexed with audio and video streams. The intent is to improve the quality of subtitles and multiple languages displayed on-screen. In the VCD standard, such subtitles were compressed with video, resulting in a low-quality text display, according to Shmuel Farkash, vice president of video products at Zoran.

Notable differences between SVCD and the DVD format, meanwhile, include the lack of support for Dolby Digital in SVCD, as well as the Chinese format’s use of a CD rather than a DVD drive. After that, the specs are virtually identical.

Content Scramble System (CSS) is a data encryption and authentication scheme intended to prevent copying video files directly from DVD-Video discs. CSS was developed primarily by Matsushita and Toshiba. Each CSS player licensee is given a key from a master set of 409 keys stored on every CSS-encrypted disc. The theory was to allow a license to be revoked by removing its key from future discs. The CSS decryption algorithm exchanges keys with the drive unit to generate an encryption key that is then used to obfuscate the exchange of disc keys and title keys that are needed to decrypt data from the disc. DVD players have CSS circuitry that decrypts the data before it’s decoded and displayed, and computer DVD decoder hardware and software must include a CSS decryption module. All DVD-ROM drives have extra firmware to exchange authentication and decryption keys with the CSS module in the computer.

DVD Ghost is a software which can help you enjoy Region-free DVD movies. Click here to download and enjoy its trial version.

Welcome to http://www.clonedvd.net/clonedvd/ to know the differences between CloneDVD 4 and 5 by the features marked “New”.

Please restart your computer. Then be sure to disable your anti-virus software and reinstall the updated  program.

The reasons may be below:

Cheap DVDs

Remember, DVDs are just a few cents worth of plastic, manufactured in massive quantities. Sometimes you end up with a bad disk or a bad batch. Try a new disk, or a whole new brand, and you may have more luck burning your DVDs.

Dirty DVD Drive

Dust or debris in your DVD burner can prevent it from burning DVDs correctly. Buy a lens cleaning disk and use it in your DVD burner drive. This can clean things up and give you a clean, successful burn.

DVD Burning Speed

It’s always tempting to burn DVDs at the highest speed possible. In theory, you’ll save time and can get more DVDs burned. In practice, though, higher speeds can result in unreliable burns.

Slow things down and set your DVDs to burn at 4x or even 2x. This may eliminate errors.

Overworked Computer

Sure, we all love to multi-task. Most of the time your computer can handle many tasks simultaneously, but DVD burning isn’t necessarily one of them.

When burning DVDs, step away from the computer and let it concentrate all of its energy on burning the disk. This can often prevent random errors during the burning process.