which s/w to use for encoding for uncompresed avi file recorded through fraps

[khan sahab]

i want to encode my games videos which are uncompressed avi files [recorded using fraps]

i have used megui before so please tell me which profile should i use for such a huge file 800MB+ for 30 odd sec

i have tried HQ- slower/insane but the result is not satisfactory and there is a little whitening in the video after encode

EDIT: i dont want to change resolution

please guide me with megui or any other s/w

Complete name : H:\mafia2 2010-11-15 10-06-23-80.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 842 MiB
Duration : 37s 0ms
Overall bit rate : 191 Mbps

Video
ID : 0
Format : Fraps
Codec ID : FPS1
Duration : 37s 0ms
Bit rate : 189 Mbps
Width : 1 440 pixels
Height : 900 pixels
Display aspect ratio : 1.600
Frame rate : 25.000 fps
Color space : YUV
Bit depth : 8 bits
Bits/(Pixel*Frame) : 5.825
Stream size : 832 MiB (99%)

Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 37s 0ms
Bit rate mode : Constant
Bit rate : 1 411.2 Kbps
Channel(s) : 2 channels
Sampling rate : 44.1 KHz
Bit depth : 16 bits
Stream size : 6.22 MiB (1%)
Interleave, duration : 1000 ms (25.00 video frames)

[zmaster]

Maybe just do not have enough bitrate. Use mode crf ("Const. Quality"). crf 17 - good quality. crf 16 gives an image almost indistinguishable from the source.