Give the disk image created with mkisofs a name ending in .iso and transfer it to the PC. Select ``Create CD from disk image'' under the file menu in Easy-CD-Creator. There are two types of disk images .cif and .iso. The first is what Easy-CD-Creator makes. Select the second from the drop box at the bottom of file input dialog and select the file. The CD will then be created at X2 speed. This does a whole CD-ROM in 70/2 minutes; double the time if testing is done.
The only problem with giving up multi-session is that one can waste space on the CD-ROM. As they are cheap this doesn't matter. One can put the extra space to good use, however (courtesy of Zheng Weihong): add tar.gz files of the directories as well. For example, you could have
data/ local/ data.tar.gz local.tar.gz
in the top level directory. This way you can install the directories using the tar files and access individual files as well for backup purposes. Also, you would effectively have two copies of the one file. This is useful if you get a scratch on part of the CD-ROM disk and part of one file becomes unreadable.