What version of Premiere Elements are you using and on what computer operating system is it running?
What are you doing - burn to disc DVD, either to DVD-VIDEO on DVD disc or AVCHD on DVD disc? For either,
does the burn to folder work whereas the burn to disc does not?
What error message are you getting at this 99%? In the sequence
Encoding Menu 1 of 2 and 2 of 2
Where is this 99% stoppage occurring - at the end of the Burn stage?
You have not supplied enough information with which to help you. So, please do so. The answers will be
in the details.