Hello, If you remember me, a few months ago I had a problem with my optical drive that I got fixed, turns out there was dust inside and stuff. The thing is, when ever I try to burn an IMG file (ISO, DMG, etc.) that is in large size like 6GB it just keeps failing. It just says opening session, starting burn.. and keeps loading but it takes like 3 - 4 minutes (not enough time of course) and starts verifying the disc then it gives an error that I unfortunately didn't take a screen shot of. I bought two 8.5GB Double Layer DVD discs today and they aren't cheap and easy to find in Egypt. I had to drive around 30 minutes just to get. I bought two just in case that happens again and I was right, it did. Also, when ever I burn an audio CD, it just doesn't work. I don't know what's the problem? The optical drive reads fine and sometimes burns fine but that happens a lot. I also tried burning an IMG on the Windows OS a few weeks back (a 7gb file) using ImgBurner but it failed in the middle for some reason. Does anyone have a clue what I should do now? I seriously don't waste the other DVD and I am sure it's going to fail again. It doesn't even let me choose the burning speed it just automatically sets it to 2.4X but the Philips and HP DVD discs I bought have 8X speed on them (I don't know what's the difference, I am not good when it comes to burning and stuff). But, if it will take that I have to use the other DVD in order to identify the error and hopefully some one can help me here then so be it. Thank you very much and I hope some one can answer my question fast! Tarek. EDIT - I wasted the other DVD too in order to take a screen shot of the error because I didn't remember or notice what it was. By the way, the HP DVD disc had 2.4X speed typed on it, unlike the Philips disc, which is what the Disk Utility uses.