How To Make My Original Subtitle File Remain Unchanged

Dec 1, 2015 at 2:33 AM
For weeks I've been trying to make my very first subtitles encoded film, after I found VidCoder I nearly burst with joy. But a few hours later when I opened the new encoded video, my original subtitle file (using Aegisub, cost me many days of work to find the exact right font color and size) disappeared entirely, to be replaced by unregular sizes of words. If anyone knows how to unalter my subtitle file, please help or maybe suggest some other subtitle converters. Thank you so very much!