Having trouble making DVD-A, what am i doing wrong?

Hey guys,

I downloaded Adobemans DVDA GUI from his website. Installed the software and read the instructions. Just to try it out, I added 4 or 5 mp3s and hit "made dvda". It does its thing and asks me if I want to save, I decline and then it creates the ISO image of the songs, I just left it named "untitled"

I then open up Nero and go to the "DVD (ISO)" button and add the untitled ISO file that Adobemans software made. I hit burn and it burns for a couple minutes and spits out the DVD saying it was burned successfully. I put it in my TL and it loads for a few seconds then says "format". So it doesn't work.

I'm using memorex DVD-R 16x 4.7gb dvds.

I also tried using power2go and tried burning the ISO file and it burned much faster, like 45 seconds. I put it in my car and this time it doesn't say format but it never plays anything. I can change tracks, which go on forever even if I only had like 4 or 5 songs but nothing plays.

What am I doing wrong, I read the instructions and I'm doing it to a T but its not working.

Please help!

PS. I'm getting low on dvds so I could really use the help.