DVD Region 1 - Looney Tunes Golden Collection: Volume 3 (4 DVD) - Video & DVD

Click Here to Order DVD Region 1 - Looney Tunes Golden Collection: Volume 3 (4 DVD)

Click Here for More Information about DVD Region 1 - Looney Tunes Golden Collection: Volume 3 (4 DVD).

Did you know

1. Early CD and DVD drives read data at a constant rate. The data on the disc is passed under the read head at a constant rate (Constant Linear Velocity, or CLV). As linear (meters per second) track speed grows at outer parts of the disc proportionally to the radius, the rotational speed of the disc was adjusted according to which portion of the disc was being read. Most current CD and DVD drives have a constant rotation speed (Constant Angular Velocity, or CAV). The maximum data rate specified for the drive/disc is achieved only at the end of the disc's track (discs are written from inside). The average speed of the drive therefore equals to only about 50–70% of the maximum nominated speed. While this seems a disadvantage, such drives have a lower seek time as they do not have to change the disc's speed of rotation.

2. A 74-minute (650MB) disc has roughly 333,000 sectors while the 80 minute (700MB) one has approximately 360,000 sectors allowing greater storage. 90 and 99 minute versions follow the same logical extension cramming more sectors at the cost of reliability across drives. Pits are much closer to the label side of a disc, so that defects and dirt on the clear side can be out of focus during playback. Consequently, discs are much easier to ruin by scratching their label side, whereas clear-side scratches can be repaired by refilling them with plastic of similar index of refraction.