FLV to Video ?? 
There are rarely nsv to FLV converters in the market, dvdXsoft nsv to FLV converter is the sole one that convert Xvid, DivX, 3GP, MPEG, MPG, MPEG-1, MPEG-2, MPEG-4, WMV, nsv, RM, RMVB, MOV, and more other formats to FLV video format for playing on websites like YouTube, Metacafe or by software that supports FLV formats. Of course, you can also convert nsv to FLV with this FLV Converter Software. Do you want to play your own videos on websites? Do you want to upload your Movie to YouTube, Metacafe? Let's go.
Guide: How to convert nsv to FLV with the nsv to FLV Converter? Step 1: Download something to convert nsv videos to FLV. 
Free download nsv to FLV Converter (Note, like we have already explained, this nsv to FLV converter is not only convert nsv to FLV, this nsv to FLV software can also convert many other video and audio formats to FLV formats).
Step 2: Launch the nsv to FLV Converter:
Step 3: Click 
to input nsv video file to be converted (batch convertsion supported, you can feel free to add as many as you wish). When "the add media files" popup window open you need to select "All Media Files" or "nsvP files(*.nsv, *.3G2)".
Tip: If your mobile phone video is *.mp4 formats, you should select MPEG-4 files.
Step 4: In the file list, click the FLV video file to be converted, the preview video screen may auto play the selected FLV file, just click pause button.
Step 5: Click the down arrow to choose FLV or SWF or both as you wish.
Then click change, select the destination folder you want the converted nsv to save.
Step 6: Click 
button.
the process shall be looked like this:
After successful converting nsv to FLV, the converted video file shall be stored in the folder you have previously selected.
Convinced? Buy full version now.
Upload your FLV videos to YouTube like websites