You need a video converter for .flv to .mp4.
Download the Enolsoft video converter or Koyote Soft Free Video Converter 2.3.
http://download.cnet.com/Enolsoft-Video-Converter/3000-2194_4-75755915.html
Locate and add the .flv file you wish to convert to .mp4. Follow the conversion instructions ensuring your Output Format is .mp4.
I think the FLV to AVI MPEG WMV 3GP MP4 iPod Converter is your best choice, it always works well for me. it can convert Flash Video FLV to AVI, FLV to MPEG, FLV to WMV, FLV to MP4 format.with excellent quality.
I always use Nidesoft video converter, this converter can convert flv to mp4 in high quality at fast speed, besides, it can convert between almost all oher popular video and audio formats. it is also easy to use, only a few clicks were needed.Convert any online flv / youtube video to iPod / zune / PSP / MP3 / MP4 Portable player directly.it is full free!!You can use moyea flv converter and FLV to AVI MPEG WMV 3GP MP4 iPod Converter V4.2, both of them are professional FLV converter software which can convert Flash Video FLV to AVI, FLV to MPEG, FLV to WMV, FLV to 3GP, FLV to MP4, FLV to iPod, etc.
I think is FLV to Video Converter Pro 2. The best FLV to Mp4 Converter.
Search a normal flv converter or a video converter ultimate It supports convert FLV file to popular video formats including AVI, MPEG, WMV, DivX, Xvid, ASF, 3GP, MP4, iPod, PSP, Zune and convert FLV to audio formats MP3, WMA and WAV.
YouTube videos are usually .mp4 format.ACTUALLY THEY ARE .FLV FILES NOT .MP4
uSeesoft FLV Converter can do it for you it can convert FLV and YouTube videos to almost any video/audio format with unmatchable conversion speed and high quality, such as converting FLV to WMV, converting FLV to AVI, converting FLV to MP3, converting FLV to MPEG, converting FLV to MP4, etc.
Yes, you can. Follow the steps below.Google "Pavtube Video Converter Ultimate" and download it.Open this program, and then click "File" to load FLV files to the program.Click "Format" and then choose MP4, MP3 or any other video or audio format you need in the pop-up window.Choose the save path and click "Convert".
Here is a guide about how to convert FLV to WMV, same way to convert FLV to AAC because Daniusoft video converter support convert FLV to AAC too.
YouTube videos are usually .mp4 format.ACTUALLY THEY ARE .FLV FILES NOT .MP4
iPhone supports MP4 and H.264 video. If you want to put video on iPhone, you can only convert the video to MP4 and H.264. Total Video Converter can convert various video files to MP4 and H.264 with good quality at fast speed. Apart from that above, Total Video Converter can also convert various video files to H.264/MPEG-4 AVC, FLV, 3GP, DivX, MOV, M4V, DivX, XviD, ASF, SWF and VOB etc..
MP4 format is used on numerous devices such as Amazon Kindle fire, Apple iPod and Blackberry use Free MP4 Converter. It is completely free and safe to install and run. Pavtube Video Converter Ultiamte is a free video converter. It can convert almost popular video formats like MOV, FLV, MP3, WMV, MPEG, etc to MP4 for Windows/Mac users.
The best video formats for you tube are : MP4/ MPEG/MOV/FLV