despite being inside an eval, a condition still exists where a call in readTags can result in a hung scanner. the use statement being evaluated is not enough to determine an error will not continue to occur.

this may be fixed with the following patch:

*** /Users/dan/slimdev/slim/7.4/trunk/server/Slim/Formats.pm    2009-09-09 20:18:47.000000000 -0700
--- /Library/PreferencePanes/Squeezebox.prefPane/Contents/server/Slim/Formats.pm        2009-09-11 19:05:40.000000000 -0700
***************
*** 165,171 ****
                        if (my $tagReaderClass = $class->classForFormat($type)) {
                                if ( !$loadedTagClasses{$type} ) {
                                        eval "use $tagReaderClass";
!                                       if ( $@ ) {
                                                logError("Unable to load $tagReaderClass: $@");
                                                return {};
                                        }
--- 165,171 ----
                        if (my $tagReaderClass = $class->classForFormat($type)) {
                                if ( !$loadedTagClasses{$type} ) {
                                        eval "use $tagReaderClass";
!                                       if ( $@ || !$loadedTagClasses{$type}) {
                                                logError("Unable to load $tagReaderClass: $@");
                                                return {};
                                        }

test on the attached mp3, which will cause a repeatable failure.