I have no idea why your music is located in the engine folder.
This should not be as mentioned because you won’t be able to back up your databases that way. Move your music folder to the main part of your hard drive where Serato folders are
Then delete the engine folder and see if the error comes back.
You can also try deleting each database one by one inside the engine folder to see if that works also.
Hey I have a question?? Where is your main music folder stored? On your. Imputes or on the external drove your using for your players ?
Nope the engine library contains database AND music files in a subdirectory (the drive which is used on P4 or other devices)
The original files are inside your computer (itunes or whatever) and they are copied into your external device with the database when you sync/export.
If you export to a thumb drive (packing), the music files are located in the engine prime folder on the destination drive.
Okay that’s why it’s actually copying the tracks when you do it that way.
I keep my music on a external and so there no need for engine to copy them.
The way your doing it I’m not sure how to safeguard from backing up and restoring.
The way I do it there’s never any packing or waiting for tracks to transfer because they are already on the drive.
The only thing engine does it update the engine folder for cue points and analyzed tracks which is instantaneous
Just copy and paste the engine folder and everything gets restored once you have a backup of the engine folder
I have had this issue a couple of times - but when I then insert the usb drive to my PC, it asks me if I want to run a fix on my drive (as it sees some issues) and after I run the scan/ fix, it works just fine on the mac/ EP again.
Why this happens, I dont know.
Must add that I have not had this issue since I bought a SSD.
Okay, for real can I get a Denon tech support mod to address this issue? I know tech support is hard to come by for Denon, but I’m not doing anything until I get an actual official answer. There’s too much advice floating around and I’m not totally sure what to do. This is 100% a Denon issue because my drive works just fine everywhere else.
Not sure, Denon is not the maker of you external device. If it works with another usb device, then it is yours to resolve the error.
What a help! Thank you for your input of…nothing. Did you read anything in this thread? My external device works 100% as intended with every piece of software and every computer I own, except Denon’s EP software.
Hi @djbertie - Sorry to hear of the difficulties!
Data corruption typically only occurs if a media device is forcefully removed from the computer or Prime hardware while the media device is being written to.
In order to help determine what could have caused this, I will need to collect further information about your usage and configuration.
You say the corruption message is shown on the players but not the desktop software. Have you tried to perform Library Optimization while this drive is connected? (Preferences > Library > System > Library Optimization) If not, it may be worth a shot.
What OS are you running on your computer?
What version of Engine Prime are you running?
What Prime hardware do you use this drive with?
What is the firmware version of those Prime hardware devices?
Do you safely eject your drive before removing from you computer or Prime hardware?
Our Engine DJ Technical Support team will be able to assist further with this matter. A member of the team will help you identify the needed files and provide a link for upload.
Not sure why you’re questioning our level of support? You posted this over the weekend and we only just returned to work today. You’re comment is unnecessary and untrue. We always strive to provide the best level of support for our users, and I think many will attest to that. Please try and be a little more understanding. We are always willing to help but things are not always immediately seen.
Bertie mentioned on both. On the player and with EP.
Repair, rebuild or restore are the only options left. The first being the preferred option, if doable.
Thanks for the response! I have added my zipped files to the link but it’s 6GB so it will take a while.
I am running windows 10, using EP version 1.3.3, using (2) 5000’s & x1800 mixer running 1.3.1. Yes I eject my drive before removing it from my computer but sometimes it auto ejects itself.
I also ran this to check the drive (which looks fine)…
In regards to the responses, I have these following threads/issue that were never answered…
5000 stuck on powering down - https://community.enginedj.com/t/5000-stuck-on-powering-down/17549
Cues sometimes have delay - Cues cause lag/delay
Search results reset - https://community.enginedj.com/t/search-refreshes-a-split-second-after-hitting-view-to-go-back-to/16842/12
Search results reset - Search results are resetting
I honestly haven’t even got around to posting the rest of the issues I have because the main problematic ones are not currently fixed. This is also true for numerous threads regarding BPM issues, beat grid issues, search time functionality, EP functionality and performance, etc., we just don’t see responses the majority of the time.
People spend thousands on this equipment and we are at the point where issues are a pattern and not just rare occurrences. I’ve played out with these things for a minimum of 70 hours at this point and there is just a list worth of stuff wrong with them. The screens semi glitch scrolling through folders, sometimes I load a new song onto a deck and the cues are still controlling the song that was previously loaded on it (<<you guys seriously need to look into this one, I have yet to make a thread on it), sometimes pressing cue does not actually activate the cue…I can seriously sit here all day and type out a dozen more issues and I’m not even taking my anger out on Denon right now, it’s the honest truth.
You are not the first to report this, wonder whats causing it?
@jayb182 I am updating this regarding the drag/drop files- I have left my computer on 2 nights in a row and it will not process my files through to you via that website. The upload has gotten stuck at 6-10% both times and just stops uploading. If you really need these files please update me on another way I can send them over.
I have all my music backed up from my “corrupt” harddrive onto my computer, so I’m wondering what to do next. Do I save my database as well before wiping the drive clean? (I have not yet wiped my drive clean). Then, connect it to EP and see if it still says corrupt? Then I would re drag/drop the tracks back onto the drive?
@ mufasa In regards to loading a different track onto the same deck, I’m not sure what the issue is. This never occured prior to the most recent update (1.3.3 I believe), so maybe it’s related to this. I made a post about this issue- still waiting on a response for that one too. I can record a video of this happening, as it seems to be more frequent over time.
A positive with the standalone movement is that no one can blame your laptop, except you found way to stream porn on your 5000 screen. 
So it’s either hardware, OS or usb drive acting up
Thanks…I’m hoping I can figure this out soon because, while I have no events this week, I have a handful coming up the following week. I need to get this sorted now.
EDIT: They wonder why I put so much pressure on response time. It’s been 5 days since my last response…and I’m not even trying to be mean.
HI @djbertie - There is a lot of individual issues in this single thread which makes it quite difficult to effectively respond to. I’ll do my best to pull them out and answer individually.
Corrupt DB
6 GB is quite large for a single DB file.
How many total tracks are in your collection?
Note: We recommend 50,000 or less for the best possible browsing experience.
We have yet to receive the zipped file.
Auto ejection is not normal behavior.
If this is happening regularly with multiple drives/ports, it would suggest a hardware problem with the unit. At which case warranty service would be required. I can help you with this just PM me.
This does not sound typical. Our staff is normally quite good at responding to cases in a timely fashion. Our offices are only open for business M-F. How many business days has it been? Just send me a PM with details of the your case correspondences and I will inquire internally to see what may be causing the delay.
This is not normal behavior and would require warranty service.
Sounds like Quantize is enabled and the quantize value is set at 1/2 beat or greater.
This is logged/confirmed on our side and we’ve got a fix coming in the near future.
This is logged/confirmed on our side and we’ve got a fix coming in the near future.
This is logged/confirmed on our side and we’ve got a fix coming in the near future.
@JWiLL Why isn’t Denon recommending that people use an external drive as the source drive, with a main music folder and then subfolders inside that folder for all of their music? Then dragging and dropping music into prime from those folders?
This eliminates a lot of problems and also saves so much time. Every time a cue point or loop is made on the player it’s instantly saved at that moment. No need for syncing or updating.
This way is also much much safer when issues arise, they can delete their current engine folder and replace it with a copy that was made at a time when everything was working normally.
** this is much easier to do it this way as their engine library folder will not contain any music files.* ** there is also no packing required as the music is already on the drive so once analyzed everything is quick and seamless.*
This is how Serato works and I have been using this method and it seems to work great especially for making backups of my Engine folder.
I make copies of my engine folder weekly and if something should arise all I loose is a week of cue points and analyzation.
The other way that people are doing it seems messy and is a nightmare to recover from.
