SubMagic

SubMagic is a comprehensive software application that you can use to perform multiple operations on subtitle files, such as conversion and synchronization. It supports several file types, including SRT, SSA, SMI and TXT.
The interface of the program is represented by a standard window with a well-defined layout. So, you can append, split and convert subtitle files.
Performing an analysis on the current sub reveals statistics which focus on the number of subtitles, lines, words and characters, empty subs, along with the longest or shortest line, to name just a few.
It is possible to fix overlapping subtitles, remove credits and the trailing dashes on the first line, correct OCR errors, change the ending commands to periods, as well as to fix invalid items and join short lines, among a long list of sub problems.
Furthermore, you can move, shift or stretch subtitles, synchronize them with the corresponding movie, use a search and replace function, get AVI information (e.g. aspect ratio, frame rate, average bit rate), convert the frame rate, as well as switch to a different language for the UI and customize the color scheme.
SubMagic comes packed with a wide range of configuration settings for all types of users. It has a good response time and uses a low quantity of CPU and system memory, so it doesn't affect the computer's overall performance. No error dialogs have been shown in our tests and the app did not hang or crash. SubMagic should satisfy the entire audience, thanks to its intuitive layout and options.