I tried mp3trim where you can do that, but I've got many mp3s wich are larger than 100 MB and they are not supported by mp3trim! If I want to use the program I have to buy mp3trim pro which costs 99 dollars. Is there any other thing i can do? Or any other program which support large files?
I assume you are burning standard CDs with WAV files (playable on any CD player), and not specialized CDs with MP3 files (playable only on specialized MP3 players).
Try searching the web for terms such as 'mp3 volume normalization'.
Players such as WinAmp have plug-ins such as AudioStocker that can normalize the volume level as the song plays.
CD burners such as Audio CD MP3 Studio 2000 (http://www.ashampoo.com/audiocd.htm) have features such as 'Automatic level adjustment (normalize) while recording'.
You might send a question to mp3trim (http://www.logiccell.com/~mp3trim/) to see what their response is. Personally, I think $99 is too much to pay just to do what you want.
I have a program called Cool Edit 2000, which has a 'Transform | Amplitude | Amplify' function, which can increase or decrease the volume. It also has a 'Transform | Normalize' function. (Cool Edit 2000 is $69). (http://www.syntrillium.com/products.htm)
