Is the avi video made by x4 very big?

This involves the compression ratio of mass and volume. At present, the best compression format is M2TS format based on H2.64 compression, which is commonly used in HD DV. Secondly, the video format of DIVX coding (which is a patent protection format instead of DVD) and the format of MPEG4 compression such as RMVB.

To sum up, if the one-hour standard definition video (720*576) adopts quantitative quality:

DV AVI format can save the video quality of 100%, and its size is 13G/ h (720*576 25000kbps fixed coding).

MPEG2-2 format can save 90% of the video quality, and its size is 4G/ h (720*576 4933kbps fixed coding).

DIVX AVI format can save 80% of video quality, and its size is 700MB/ h (720*576 1200kbps dynamic coding).

RMVB format can save 70% of the video quality, with a size of 500MB/ h (640*360 600kbps dynamic coding).

Secondly, there are packaged KMV, WMV, ASF, awm and so on.

Therefore, most videos on the network are packaged in RMVB format, which not only ensures the video quality to a certain extent, but also has a suitable size and is more convenient to download.

In short, on the platform of Microsoft XP, as long as your hard disk is large enough and your CPU is good enough (above I7 920 level), AVI without compression and lossless is the best editing format.

Note: Pay attention to the adjustment of code rate. AVI has many formats, especially DV AVI format. Common formats are: Microsoft dv codec, Sony DV codec (Vegas required) and Canopus HQ (procoder required).