http://redump.org/disc/36178/ This disc is perhaps same.
These discs have only audio track on TOC, but there are actually some data sector in pregap of first sector. When dic searches the offset from disc, it gets the offset from "first data track". So dic can't get it properly. Why wouldn't CD-i adopt the mixed (data - audio) disc?
Please wait until fix.
Updated test version. Please test.