An SRT file any entries with a newline before text like this:

2206
03:24:08,569 --> 03:24:12,405

This is still America, damn it.
Who wants a cowboy in the White House?

Will parse into the srt object just fine, but when being converted back to a string with to_s it'll throw an error (line.rb:36) complaining that the time isn't a float.

I expect that newlines before the text are invalid, but they're handled by the parser, so I suppose the serializer should work...

I'm working around the problem by editing the .srt file(s) to fix this for the moment, hopefully it's not too hard to fix in the code.