1. Ordinary DVD 4.7G should be able to store 720,576 SD 8.5M videos. Different video formats and file sizes vary greatly. For example, DV-AVI format, its file size is more than 20 times that of FLV format! So it is impossible to calculate how long a video file can be saved. Because it doesn't say what its video format is! -The above is an engraved data DVD.

However, if it is made into a video DVD, a 4.7G DVD disc can record 720,576 SD 8M video for up to 90 minutes.

Second, weddings are usually carved into video DVDs. Unless the customer has special requirements.

Thirdly, under normal circumstances, the code rate of wedding video will not be too high. Because it's not necessary. When the resolution is 1280*720, it is generally around 8000K, which is quite good (many weddings will use less than 6000K).

Fourthly, the D9 disk, with a capacity of about 7.9G at most, can carve a file of about 7.9G-again, this is a data disk, which is only related to the video file size.

However, if it is used to record video DVD, the clearest method can record 150 minutes at most (720*576, bit rate 8000K). However, if we only say how long the video file can be carved, regardless of the clarity of the video, we can carve a video file of about 1800 minutes at most.