can the video quality of mobile 3gp improve by converting it to quicktime?

You only need a Mac DVD rip tool: Pavtube
First, download Pavtube DVD Ripper for Mac and install it on your Mac.
Click the button DVD Folder or IFO File to import the DVD to the program. Choose the output file *.flv under the drop down list of Format.
Then edit DVD clip.
Two sections Trim and Crop under the Editor section can help you get the favorite DVD clip length and area.A Microsoft Windows tool for comparing and documenting Oracle database schemas.
The output video can literally retain the original effect of the DVD.
With all the options and buttons neatly arranged in plain view and each of them well suited to task, Pavtube DVD Ripper for Mac is more than user friendly.
Rented movies are playable only for a limited time, and you have to finish watching them in the valid period, or movies are automatically deleted when they expire.
I recommend you a useful and free tool that can convert video, rip dvd, Backup DVD and download youTube video.Windows 7 YouTube downloader lets you save videos from YouTube and play them on your Windows 7 system.
Next Video Converter is a free video converter and DVD ripper with easy-to-use graphical interface, fast converting speed, and excellent video quality.I hope this may help you.It supports so many devices and video formats, such as: iPod, iPhone, PSP, Zune, Xbox, Nokia, avi, wmv, 3gp, mov, flv and more into avi, mov, asf, wmv, mp4, 3gp and others.
Pavtube DVD Ripper for Mac boasts fast ripping speed. It is capable of converting DVD to MP4, AVI, MOV, M4V, 3GP, 3G2, MPG, MPEG, FLV， SWF, MKV etc. And it can also convert DVD audio to MP3, M4A, AAC, AC3, WAV, OGG etc.
Moreover, it allows users to select DVD subtitle and audio track to convert DVD movies of any available languages, as well as trimming favorite parts and cropping DVD. This smart DVD Ripper for Mac also allows users to split DVD movie to different chapters.Snow Leopard video converter is now fully compatible with Mac OS X.
Pavtube DVD Ripper for Mac can convert DVD to audio/video files in most popular audio/video formats, including AVI, MPEG, MP4, FLV, 3GP, MOV, MKV, AAC, MP3, WAV, MKV, M4A etc.
Pavtube DVD Ripper for Mac boasts fast ripping speed and can convert DVD to audio/video files more rapidly more than you expect and the quality of output video is totally secured.
Pavtube DVD Ripper for Mac converts DVD to video of high quality. Audio and video are of total synchronization. No audio skipping, distortion at all.
Users would have no difficulty at all to locate what they need.
DVD Ripping software for Mac[/url] allows users to take snapshots and preview the DVD before converting.
Pavtube DVD Ripper for Mac enables users to split the entire DVD to different titles and chapters.
It also allows users to trim favorite parts of the movie if they don’t want to convert the entire movie to video.