Well I finally got Toast 15 to work this morning. I cloned my internal drive to an external Firewire drive, booted my iMac from the cloned drive, uninstalled and thoroughly removed anything with Corel, Toast, and Roxio from the drive. I then rebooted from the external drive and installed Toast 15 to it. It has now been working for the past 2 hours. I will watch it for another week before I attempt a clean install to the internal drive. If anything goes wrong I will update this post.
BTW, I first used a video converting program to convert my mp4, MKV and avi files to an NTSC VOB file before using Toast 15 to convert, remux and burn them to a dvd. This combination is working so far.
My configuration is:
- 27" iMac Mid 2011
- 2.7 GZ Core i5
- 16 GB memory
- 250 GB SSD Internal, 250 GB External
- OSX El Capitan version 10.11.6