With Converter App, you can convert MPG files into many other formats:
MPG to MP4 | MPG to MP3 | MPG to MOV | MPG to AVI | MPG to MKV | MPG to WEBM | MPG to WAV | MPG to WMV
→ All MPG Converters
If you want to keep working with your final SRT, try:
SRT to SSA | SRT to ASS | SRT to VTT | SRT to DOC | SRT to ODT | SRT to DOCX | SRT to WORD