RedHat 7 includes a version of mkisofs (1.9) which is only compatible with gcombust versions >=0.1.34. Powertools 7 includes version 0.1.32 which doesn't work. Please see gcombust home page at: http://nemo.sby.abo.fi/~jm/gcombust/
OK. I have gcombust-0.1.35 going through the QA process now. I have uploaded the package to http://people.redhat.com/timp/RPMS and also look in timp/SRPMS for the source package. If you have any problems with it let me know. Tim
Looks like it's a good package. I'm going to get the package signed and will release it as an errata today. Tim