I have about 700-800 gb of data and i seem to acquire more every day. I currently use a solution of 2 external hard drives which each hold a complete copy of my data. I use one, regularly accessing the data (playing mp3s and videos mostly) and the other sits offline until new data is written to the one in use then i always plug the second one in and copy the data to it then take it offline again.
I was contemplating buying a Blue Ray burner with BDXL capability. Most of the folders I have would fit on a single, regular BD-R 25 GB disc, a few folders would need a double layer 50GB disc, and my folder with my movies in it would fit on a BDXL 128GB disc. I have reservations about using this as a long term storage solution, after reading reviews such as thesemany of which claim to have lost data written to the discs after a period of time passes.
Besides online backups, which I do not like, what are some reliable backup solutions that won't break the bank? A tape backup drive seems to cost a fortune, as do the media for them.