Hi i'd use sound forge, audacity or even windows media player but I don't like using it much. If the speech is only for your own reference then 64 kbs will be fine but I wouldn't normally go much lower than 128 even at that you can hear the distruction of the audio. Joe ----- Original Message ----- From: Ramy Moustafa To: realmusicians@xxxxxxxxxxxxx Sent: Wednesday, February 10, 2010 9:58 PM Subject: [realmusicians] Decrease the mp3 resolution hi all: i have 114 mp3 file, that i need to decrese there resolution, they r in 192 kbbs, and i need to decrese them as they r just speeches, and i need to put them on my phone, so i think if i make them mono not stirio, and 64 kbbbs, will they be good? and what program should i use to achieve this? thanks in advance Cheers: Ramy Moustafa If music be the food of love, play on... Mobile: 0020102221750 Personal email, Msn and yahoo id: flutelover@xxxxxxxx skype: roma30 Facebook: Ramy Moustafa