Permanent Eraser 2.5.3 user reviews

Unfortunately, Permanent Eraser 2.5.3 could not be used on my 2000 IMAC with OS X!
I received a warning (I tried to run it twice): "your hard disk has no more space available for application memory Further application disk activity may have been suspended." (Indeed it was!) This is very disappointing, as I wanted to donate this computer (it still runs fine). Why would it take more disk space to overwrite the existing files that were in the trash?
Any ideas or suggestions?
I'd appreciate your input.
Pam F.

This is what i used to delete my data from my drive and it works nicely.I see another tool Stellar Wipe Mac and run both of these tools to check the efficiency and find really good both of these to erase my data permanently from my drive.I would like to tell you that while using any wipe software be sure that the data is not of any use in future because it would not be available after using Permanent Eraser.