I have mp3's that mostly have 120 and 192. Itas about 50/50. But I recently heard of 320 bitrate. Higher quality at the expense of space. But thats not an issue. I have plenty. I want to know if there is a certain sofware that io can download to covert these 128 and 192 to 320 bitrate. Freeware or shareware, what is the best oen availiable?

I know that Goldwave supports 320 kbps and I am sure that many others do too. Goldwave is not free but it has a fully functional trial version. Be aware that you will lose quality in any MP3 that you reencode, even if you are going to a higher bit rate.

Forgot to say that transcoding (going to a higher bit rate) will not improve the quality. It will only result in a larger file with a lower quality than you already have. There is no way to get back the quality that was discarded when the MP3 was originally encoded. Transcoding will actually result is more bits being discarded and will result in a lower quality MP3 in a larger file size.

Yeah dont try to re-encode them to 320Kbps, Its pointless.. Personally I wouldent ever encode MP3 higher than 256KBps. 80% of my collection is at 128KBps and the rest are 160 or 192. If you have very, VERY good ears you might spot a small difference between 128Kbps and 320Kbps. Today I was listening to some music up loud and I was impressed with the detail of a certian song, I checked it out and It was going at 128KBps 44KHz. As long as you have a good MP3 encoder (Apparently Xing encoder is the worst) 128Kbps will hold really good qualitiy, If you are in a situation where you are making a DVD maybe 192Kbps for people with good sound equipment. The only difference you will notice is that WMP will say 'Playing at 320KBps' and the shrinking space on your hard drive. Mattwizz3 : ) Sempron 2600+ OC 2.2GHz 1024Mb DDR400 2x80Gb 7200Rpm 8Mb nVIDIA FX5500 128Mb Damn Microsoft...