To get best 3GPP video quality and fit your moblie phone screen. Here's the way showing how to optimize 3GPP video quality on your cellular phone.

What is 3GPP, 3G2 and MPEG-4 file format?
3GPP: GSM Network, Video: MPEG-4, H.263, Audio: AAC, AMR
3G2: CDMA Network, Video: MPEG-4, h.263, Audio: AAC, AMR, QCELP
MPEG-4: allows you to optimise every part of the movie, while maintaining compatibility. MPEG-4 contains a wide variety of compression technologies to deliver the best performance for every kind of content.

How to get best quality on cellular phone with MPEG-4 format?
You can enter your screen size directly to getting best quality for your cellular phone. For example, you want a 220x176 video to play on your Motorola V3 Raza, you should change the default "video codec" (h.263) to "mpeg4", then set the resolution to 220x176, you get the movie with current resolution which you want.

What can I choose as the output format for my cellular phone?
ImTOO 3GPP Converter now support output file format 3GPP, 3G2, MPEG-4.

Optimize 3GPP setting for replay
Recommend settings about "Bit rate, Frame rate" for some cellular phone

Sony Ericsson K750i:

• Video info:
  Bit rate: 104kbps
  Format: mpeg4
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: mpeg4aac
  Sample rate: 22050Hz
  Channels: Mono

Sony Ericsson K700i

• Video info:
  Bit rate: 500kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Nokia 6230

• Video info:
  Bit rate: 118kbps
  Format: mpeg4
  Size: 128x96
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Nokia 6620

• Video info:
  Bit rate: 79kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Nokia 6630

• Video info:
  Bit rate: 138kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Motorola V710

• Video info:
  Bit rate: 78kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Motorola V635

• Video info.:
  Bit rate: 216kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Motorola V547

• Video info.:
  Bit rate: 122kbp s
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Samsung D. 500

• Video info.:
  Bit rate: 73kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Sanyo 5600

• Video info.:
  Bit rate: 96kbps
  Format: h263
  Size: 176x144
  Frame rate: 25.00fps

• Audio info.:
  Format: amr_nb
  Sample rate: 8000Hz
  Channels: Mono

Note: The test version will only convert the first 2 minutes.

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