Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use mass free videos [title] Click button " add " on the top left to add swf or flv movies. [step] See the screenshot below : [title] Click " next " on the bottom right to preprocess the added flash movies. [step] The purpose of preprocessing is to convert swf files to flv format.

Ending1: I think this is because this app only directly burns flv movies to dvd. So it will convert swf movies to flv movies before burning, and the status of each added flv movie will be considered as (preprocessing) completed. Ending2: Since this method saves quality video, you want to do it when you're ready to go. [title] Select a few content you'd like to share to share. Ending3: Therefore, once converted, the key content for the file will be converted into swf format (sw). [title] Click to load, select the converted video. Ending4: [title] Find the photo file that you just uploaded to google play on youtube. [title] Use text about you uploaded to google play and images to create a region of the file.

Answer format: ending1/ending2/ending3/ending4