Opening 5 new gmail accounts is not something I really want to do. But if anyone wants to volunteer to do it, I have no issues with uploading them to those Google Drive accounts so the link is always up.
I just wanted to let you know that, if you are speaking of the episode 2 (the hardsubbed video) on the google drive, I had downloaded the file without problems last time. And I tested it right now and it does not show an error for me...
Sorry, not sure how to help you then. It doesn't sound like a file issue since you are able to open it in notepad. If it really doesn't work in Aegisub for you, then I would suggest copying the text in notepad and pasting to a brand new SRT file on your computer.