show with .nfo file won’t scan into library

I have a show that won’t scan into the library. The debug log shows this:

DEBUG: VideoInfoScanner: Could not enumerate file smb://DROBO-FS/Public/_TV Shows/The Rocky and Bullwinkle Show/The Rocky and Bullwinkle Show.Season 1 Extras.avi

In the same directory as the show is the file The Rocky and Bullwinkle Show.Season 1 Extras.nfo

I’m confident that the nfo file is good, as it is a copy with minor edit of one that does work in another directory. Since it is small, here it is:

<episodedetails>

<title>Season 1 Extras</title>
<rating>10.00</rating>
<season>1</season>
<episode>27</episode>

</episodedetails>

I’ve scanned mulitple times. The log entry above is just after removing the show from the library and rescanning. The regular shows (1-26) scan in properly.

Any help?