Hi here,
 
Pissed off as I can't express...
 
First, I have a project I'm working on since a couple of month.
 
All 10 songs are lined up, so the project is 45 minutes long.
 
An hour ago, I tried to record the last lead line, the guitar was over after this one.  The audio engine dropped out. I tryied again. It dropped again almost at the same place (4-5 seconds after hitting record). 1, 2, 3 times in a row...
 
I tryied the usual things: Increase the Audio buffer, increase playback and recording buffer. No change at all.
 
I saved the project, took A WHILE and rebooted.
 
Now Sonar don't recognise the project and want me to start in safe mode. I did that. Sonar loaded a completely blank project. Nice  Same thing with the auto saved version.
 
Now I can't open my project at all.  It's been a while I've not been THAT much upset, so I guessed it was time for me to ask for help... it was working good before it started to BREAK. Have I too much pieces of clips in the project? The last time I saved, the save bar stayed stock at 50%.... I don't know what to think.
 
Here is my system:
 
AMD FX-8350 at 4ghz
Gigabyte with 990 chipset
16 gb AMD performance ram @1600ghz
Firepro V4900 video card
120 gb ssd for programs and 120 ssd for active projects
 
V-studio 700 console
V-studio 700 audio interface
Octa-capture in vs-expand mode
All with latest drivers and firmware
 
Windows 7 x64
Sonar X2a producer
 
Thanks for any help, I would REALLY appreciate to reopen that project.....

Well - I think the project file is corrupted, but sometimes you can get the audio back that's stored...
As far as I know the raw audio you recorded is stored (as I am not at my work computer I cannot tell the exact place).
 
In case you lost even the raw audio (with is a bit unlikely), I am afraid you lost a few hours work, and you have to re-record the guitar track.
In that case it is time to pull a copy from your last stored back-up (eehh.. you DID made a very recent backup from your hard work did you?), and start recording that last lead line. It is not nice to loose a few hours of work, but bad luck always strikes unexpected. And let's face it - Murphy's law predicts it is always damaging, always at the most inconvenient moment, and always takes a lot of work to recover (and the last 5% will take 99% of the time).

The audio should be there. I would try to import that into a new blank project. 
 
 
BTW I nave been trying to post for awhile now. 

Shouldn't have tried to save the project.

loll yeah I won't ever save again...
 
Ok so it look like it's what I fear it is.... this project is DEAD so I have to create a new one and import each single clip back in it, redo the tempo map and everything....
 
I'm kinda lucky only the guitar were done so far, even if I have something like 2000 clips in my audio folder... anyway, let's go back to work....
 
Thanks for the answers folks :)

had same, then restarted computer and could open an autosave copy, hope you have one.
in folder where your crashed project sits, hope you have the cwp. files
it's the files without the Sonar icon (have just 'piece of paper' icon).
doubleclick one of the autosave copies and then choose Sonar to open it.
worked here....fortunately had autosave set in Preferences
 
good luck

Dyonight: I feel for you but I'm wondering, if I understand you correctly, why you would have all 10 songs in one 45 minute project? I'm not criticizing but that seems like: 1. A very unwieldy project and, 2. A recipe for disaster if something goes south on you. Like I say not begin critical just curious.
 
None the less I hope you get is back to where you were.
 
Regards, 

This is why you should use multiple versions and regular backups. Most people don't learn that until its too late. 

If you've been working on it for a  couple of months and haven't backed it up consider it life lessons.

Wouter Schijns
had same, then restarted computer and could open an autosave copy, hope you have one.
in folder where your crashed project sits, hope you have the cwp. files
it's the files without the Sonar icon (have just 'piece of paper' icon).
doubleclick one of the autosave copies and then choose Sonar to open it.
worked here....fortunately had autosave set in Preferences
 
good luck

 
Yes - this right here might be your answer. It saved me a time or two.