| Introduction | Common Lengths | Conversion Process | Rates |
DVD, also known as Digital Versatile Disc or Digital Video Disc, is an optical disc storage media format, and was founded in 1995. Its main uses are video and data storage. DVDs are of the same dimensions as compact discs (CDs), but store more than six times as much data.
Variations of the term DVD often describe the way data is stored on the discs: DVD-ROM (read only memory) has data that can only be read and not written; DVD-R and DVD+R (recordable) can record data only once, and then function as a DVD-ROM; DVD-RW (re-writable), DVD+RW, and DVD-RAM (random access memory) can all record and erase data multiple times.
The wavelength used by standard DVD lasers is 650 nm; thus, the light has a red color.
- 1 hour SP mode
This is the best DVD quality. We automatically employ this format for tapes less than 1 hr 10 minutes.
- 2 hour LP mode
For tapes more than an hour, we encode the DVD to maximize the space available. This means that if the tape is only 1 hour 30 minutes, we will encode in half-LP half-SP mode, resulting in more efficient use of space
- 4 hour EP mode
We do not encode in this format due to the bad quality. For tapes that exceed 2 hours, we automatically split the tape into 2 DVDs to ensure the best quality.
All MPEG2 DVD encoding are performed using the highest quality settings. No leeway is made to save CPU. All encoding is performed on a quad core workstation dedicated for this task.
Audio is encoded to the Dolby Digital format. Alternatively, we can encode to raw PCM standard at request.
The encoded MPEG2 file is then arranged to the fully compliant DVD Video standard to ensure it will work on most DVD players. Japan made Taiyo Yuden DVD-R discs are then used to burn the video data at a normal speed of 8X.
Despite the quality steps we undertake, we recommend periodic backups of the discs to storage such as hard disks and flash memory. After all, you want to keep those memories safely. We even have a guide on how to do this.
Each Taiyo Yuden DVD disc costs $2. These discs are imported from Japan and are regarded by the industry to have the best longevity.
Conversion to the DVD video standard (IFOs, VOBs) costs $6.
Contact us for a quote.
DVD. (2009, December 7). In Wikipedia, The Free Encyclopedia. Retrieved 06:20, December 8, 2009, from http://en.wikipedia.org/w/index.php?title=DVD&oldid=330327724