Failed to create a recovery disk in Acronis

I'm trying to create a recovery disk in Acronis. The computer ask me to choose on which program I will use to create the disk and I selected RealPlayer. The problem is, it was unknown to me that I cannot burn a disk when using a trial version of RealPlayer, I must pay for the program in order to use the complete features. And now, I am getting an error message.

Error
The device is busy. (0x40010)
Tag = -x8B7F8138EBD33EC1
Retry Cancel
I deleted RealPlayer to no avail. I don't know what else to do. Please help. Thanks.
