GSubedit: A linux subtitles editor. Gsubedit: GNOME Subtitle Editor is a GNOME tool for editing and converting DivX ;-) Subtitles. It reads/writes SubRip (.srt) and MicroDVD (.sub) files. Framerate conversion and removing of hearing impaired text is also supported.

This is a software I've been looking for for a long long time.

Gsubedit is a subtitles editor front-end which allow you do modify, spellcheck, split or join subtitles and remove hearing impaired subtitles.
download gsubedit-0.4pre

From the main window

GSubEdit currently features the following, where the file types that is supported for each action is within parenthesis:

+ Open and saving of SubRip (.srt) and MicroDVD (.sub)
+ Framerate conversion (.sub and .srt)
+ Frame displacement. Used if the frames is shown to early or to late. (.sub and .srt)
+ Removing of the text used for hearing impaired. (.sub and .srt)
+ Split file into two parts
+ Join two files into one
+ Editing of text, start- and end- frame/time (.sub and .srt)
+ Drag'n'Drop, search and replace and support for i18n (only Swedish is currently available)
+ Spellcheck

gsubedit works fine for me except for the spellcheking. Please, feel free to comment this post and leave your impression on gsubedit.deb.