PlutoMedia.PlaylistEntry.Duration is probably not what you are looking for.
I'd guess the attribute "Run Time".
>> PlutoMedia::AttributeType.find(:all).collect{|c| [c.id, c.Description]}.uniq.each {|a| puts a.join(' ')}
1 Director
2 Performer
3 Album
5 Track
6 ASIN
7 CDDB
8 Genre
9 Ref #
10 Channel
11 Episode
12 Program
13 Title
14 Disc ID
15 Conductor
16 Composer/Writer
17 Studio
18 Rating
19 Release Date
20 Website
21 Chapter
22 Encoding
23 Format
24 Aspect Ratio(s)
25 Audio Encoding
26 Rated
27 DVD Release Date
28 Run Time
29 Keyword
30 Screen Saver For MD
31 Format
32 Region
33 Language
34 Aspect Ratio
35 Number of Discs
36 IMDB
37 Synopsis
38 Producer
39 Executive Producer
40 Purchase Info
41 TV Channel ID
42 TV Program ID
43 TV Series ID
44 Creation Date
45 THX Disk ID
HTH,
Roy