It is difficult to tell what the issues are. You must "revert to original" to get the assets to transcode at new settings.
The DVD setting is for 1.5Mbps. This is terrible quality. If you are looking for audio and poor video, you can use this. But in the original post, you said you were looking for 6Mbps.
The Blu-ray setting is for .19Mbps! I'll have to try that some time to see if it actually works.
17 videos at, let's just say for arguments sake, an average of 60 minutes each, is 1,020 minutes. A bitrate calculator says that would use CBR 2.9Mbps for a single layer BD.