In terms of disc density, DVD is much larger than CD/VCD.

2. The standards for playing images are different.

When playing video, VCD can only reach the standard of 240 lines, and DVD can reach the standard of 720 lines.

3. Different data capacities

In terms of data capacity, CD/VCD can only accommodate about 650MB-700MB of data, while DVD can accommodate at least 4.7GB of data.

Extended data:

DVD optical storage is another great technological leap after CD optical storage. It not only achieved great success in technology, but also quickly pushed to the market and became a substitute for CD products.

Until today, although Blu-ray disc products have been listed one after another, DVD discs are still the main products in most markets, providing services for most consumers. It can be predicted that a new generation of high-density Blu-ray disc will eventually replace DVD disc in the near future, but DVD disc has left a brilliant page in the development history of optical storage.

Baidu encyclopedia -DVD

Baidu encyclopedia-CD

Baidu encyclopedia -VCD