Damn Small Linux Booting Problems

I recently downloaded a DSL iso file. I loaded the iso in VirtualBox and it worked perfectly, but when I wrote the iso to a CD using k3b and I tried booting it, I got an error. I tried booting from the disk in VirtualBox and got the same error. "FATAL: Could not read from the boot medium! System halted." Does anyone know of an iso that they downloaded that worked for them?

If you could boot the image without problems but can't boot the image written to disk, there's probably been an error writing the image.
Try again using a lower writing speed and verify the disc after writing.

how did you burn the ISO? If you burned it, as some people do, as a file on a CD it will not work. You must burn the CD as a "From image" type. If you were to mount the CD, what are the contents?

Last time I used the lowest writing speed available (4x) but I didn't check it. I'll try re-burning. Thanks.