Back up buffoonery !
Any data of any value should always be backed up.
It's too late (this time) for kidkage, but I hope everybody else who doesn't already do regular backups will learn from his disaster: back up your data! Not only recorded tracks, but personal photos, videos, financial records, whatever you put on your computer. If you don't, you will one day be very, very sorry.
Well, Kidcage, I can understand you feeling gutted so let me try and cheer you up with a tale of back up buffoonery.
I back up my songs that I record on my DAW. I back them up onto a CDRW via a SCSI drive. My process is, back up the stuff, reload it onto my DAW {a standalone Akai DPS12i}, listen to the reload to make sure all the tracks are there, then delete both the original song and the reload from the hard drive, thereby giving me more disc space for the next lot of recording. Been doing this since I got the Akai so it's habit.
So there's this track I was working on, really complicated and involved. It was in three sections and each section had a different drummer on it {one of whom was a friend that's a session drummer from Zambia, since returned there}, I had a sax and clarinet part, great backing vocals and screams from two sets of friends, I'd done the bass part {with the second drummer}. It took, over a 15 month period, loads of organizing and different sections were recorded out of sequence so I had to put it all together (learned loads about editing in the process) but by the tail end of last year all that needed to be added was a rap and some vocals in the mid section plus some percussion in sections 1 and 3. Also bear in mind that the genesis of this song occurred ten years previously.
So at it's advanced stage, it's sounding good and I'm looking forward to finishing it off and one day after work, there I am backing up. Reloaded the back up to make sure it had backed up then as usual deleted it from the Akai and started backing up the next song. It was while I was reloading the next song after back up that I noticed that the CDRW I was reloading had the title of my previous song, the 3 section one, written on it ! I had forgotten to take out the disc and put in the new one ! And I'd overwritten the back up ! And deleted the song from my DAW !
AAAAARRRGGGGHHHH !!!
I just sat there with my head in my hands

and my older son came up and said "Dad, are you alright ?". I was speechless. All that work for nothing ! And one of the drummers had left the country !
I did loads of research on disc data recovery and a friend that works in computers said he'd try to recover the stuff but it was all to no avail. It couldn't be done.
Oh well. I've since redone it, it's nowhere near as good in my opinion.
Yes, always back up your work,
mutter, grumble.........