1. Ordinary DVD formats are not high definition, and its PAL resolution is 720*576. HD 576 is not enough, at least 720. If you want to compress it into an ordinary DVD, Connex CANOPUS software has a good compression effect, so you can try it.

2. Subtitle Workshop is a software specially used for inputting subtitles, which is compact and easy to use.

3. yes. You can use photoshop to design the module background.

4. Ultra HD or something. After lettering, ordinary DVD can't recognize it. HD video should use Blu-ray disc and Blu-ray player.

Because the statistical method of CD capacity is somewhat different from that of hard disk, a 4.7G CD is actually equivalent to about 4.3G g. In addition, due to the production of DVD discs, the effect of reading and writing at the edge of the disc is very poor. It is suggested that the amount of recorded data should not exceed 4G, so as to read the disc smoothly.

If you need to make menus, ENCORE DVD software is recommended.