I only experienced this twice. Once with a defective vsti that only allowed real time export.
And once then the project was set at 44.1khz and my soundcard somehow got stuck at 96khz.
Your VSTi problem is another link confirming the suggestion this is really a MIDI problem and not a disk problem.
Just experienced this today on a very small project running a few audio sources through some outboard to test it. No more than ten tracks in total, running off HDD 7200rpm RAID that can handle lots more than this.
For me, the workaround was to start the bounce a bar before any audio commences. So I slipped back everything by one bar. Maybe that will work for others.
Bloody annoying though. Earlier, someone suggested upgrading graphics card drivers. Doing this for my ATI Radeon managed to screw up Windows Aero, so that no Aero theme could be selected. Which in turn meant Cubase 8 wouldn’t load. In short, I’ve just wasted half a day trying to fix for this issue before meeting with only partial success. Not happy!
hmmm… 
It happens here also out of the blue… 
Hey folks, experiencing the same issue here. Very frustrating as I have tried a couple of the proposed workarounds but to no avail.
I have been trying to open a ticket with Steinberg but even that is buggy … The form asks me to choose a registered product but there is no drop down menu to chose from. Arghhhh!
So Cubase 9 is out. Anyone still having this bug?
gently bumping this
it’s a deal breaker for me if this persists in C9
Ditto !!!
BUMP
Confirming the same issues on Cubase 8, 8.5, and now 9. 
Tried everything I can think of that was posted on the thread, it keeps coming up on the session.
Hope this can be addressed.
Thanks,
Andy
I have this problem from time to time and just wanted to share a few
- The issue is not only related to workload, my current project has one file and no plugins
- It´s not related to plugins, I’ve removed all plugins and it still overloads
- It’'s not a system wide issue, all my other projects export just fine
- real-time or off-line doesn´t matter
- Changing the audio driver or asio guard settings has no impact.
Her´s a link to a video showing an overloaded export with only one file and no plugins:
I believe there are more than one issue that can trigger the overload condition, but it´s definitely a Cubase bug and not a general system issue.
This issue has in fact plagued Cubase for years.
I´m currently on Cubase Pro 10.00.50 btw
deselect “real-time” export
And still the same problem on PRO 11. None of the remedies above comes to my aid. I have even simplified the piece by assembling it to 5 audio tracks and disabling all other … same result. Very sad.
Same issue here. Real time export results in the said error. Non real time renders one easy part of my song wrongly. I had to fix it in Wavelab. I had this with one project only so far. I keep my fingers crossed.
Hi,
I run into the same problem. Never had this issue before.
While exporting the window pops up that the export must be done in real time because of in my case the Virus TI. After 1% of exporting the warning pops up disk overload.
Tried different things like another bit rate etc but this didn’t help. But what I noticed was that my Virus TI was not in Live mode (bottom left) and when it was on the export had no problems anymore.
I do not know if this was the solution but it worked after that. So maybe for some of you this might be helpfull.
I’m having the same problem. Disc overload error. I am using no plugins, have the real-time export box unticked, I have started the marker it 0 (1.1.0.0), tried everything I can think of and I still get the error. Made sure I have the latest upgrade to Cubase 10.5, made sure my hard drive is not full, but still the same problem. I’m going to be in trouble in a few days if I can’t fix this. First time I have ever seen it in two years. I have opened a ticket with Steinberg and weill let everyone here know what the fix is, assuming there will be one that I am hoping there is once the weekend is over
Hey guys, I have the same problem here with Cubase 11 Pro. The issue is there since I use 1 external FX. I have tried almost everything I read in this forum. Nothing helped… so I reported it to Steinberg today. Seems very clear, that this problem is on their side. I wan t to stay on Cubase, but if it’s not getting better, unfortunately I have to change the DAW… It’s so embarrassing when clients are in the studio. Has someone of you another clue??? thx and cheers, Björn
I have the same issue. Disk overload during audio export. Happens frequently.
After failed attempt on export mix down ( 48.24 wav) with disk overload error, I realized I had a demo distressor plug-in on one channel that I did not purchase. After i removed that demo plug-in I was able to export mixdown. I also “saved as” to another location and cleared space on destination drive. Seemed to work.