So, long story short.
2 weeks ago i got a new 80 GB SSD, installed Win 7 64 bits on it and merged 2 partitions on my old HD, at first noticed it was recognized as "dynamic" which was strange but i said whatever. Everything was working fine until last night when i turn my computer on and notice my storage 500 GB HD was gone.
Checked the cables and they were properly connected, next i entered disk manager and my drive was set as "dynamic disk invalid". Weird i said, tried to set te partition as active but no luck, after some minutes i Googled this error and found this thread:http://windows7forums.com/windows-7-support/3906-dynamic-disk-invalid.html
Pretty much everyone on it was able to fix this problem with no issues, so i downloaded that program (hex editor), and edited the value 42 and changed it to 07 as the tutorial says. Rebooted my machine and i noticed that now my drive is recognized in both, windows explorer and disk manager, however... the drive appears as RAW and ask for formatting when i try to access it, which is false as i have 7 years worth of music and games i've downloaded over the years and i can't lose anything, there's some things i'm not gonna be able to download or get anymore, personal projects and such.
Anyways, after the initial panic attack, i Googled how to fix corrupted partitions, and found this program http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step
i run a test and it says it can't recover my partition sending an error like "partitions appears to small", however, i can at least see the name of my hard drive, something strange is that his program detects it as CHS (clusters, heads and sectors) 64201 240 63 sector size 512 but, in BIOS i see the drive as cylinders 65535 head 16 sector 255.
I remember 6 or 7 months ago that drive was scanned for errors on boot, check disk repair them and it's been working with no problems since then. What can i do to get this drive working again? there's some important data on this drive.
And before someone tells me "that's why you have to make backups on external HD'S" well, i had another 500 Gb external that died abouth a month ago, and i was gonna buy a new one this black friday, Murphy's Law at work.