What is drvmcdb?

Drvmcdb.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if drvmcdb.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for drvmcdb drivers in need of updating

Drvmcdb.sys file information

The process known as Device Driver belongs to software Sonic DLA or DLA or Roxio Drag-to-Disc or Simple Backup for My Pictures or Stomp Backup MyPC or HP DLA or IBM DLA or Roxio DLA by Sonic Solutions ( or VERITAS Software (

Description: Drvmcdb.sys is not essential for Windows and will often cause problems. Drvmcdb.sys is located in the C:\Windows\System32\drivers folder—mainly C:\WINDOWS\system32\drivers\ or C:\Program Files\HP DLA\install\. Known file sizes on Windows 10/8/7/XP are 87,488 bytes (20% of all occurrences), 88,016 bytes and 20 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. There is no file information. The program has no visible window. The service has no detailed description. The file is not a Windows system file. You can uninstall this program in the Control Panel. drvmcdb.sys appears to be a compressed file. Therefore the technical security rating is 32% dangerous, however you should also read the user reviews.

Uninstalling this variant: You may also uninstall the software Sonic DLA or DLA using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program) or visit the support page.

Recommended: Identify drvmcdb.sys related errors

Important: Some malware camouflages itself as drvmcdb.sys. Therefore, you should check the drvmcdb.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

It causes xp pro to go BSOD on Bootup
The driver file drvmcdb.sys, is Veritas filter driver for Windows 2000 and XP. Veritas makes backup and availability products, and are common parts of other utilities which perform those functions. The DRVMCDB.SYS driver from VERITAS sends an IOCTL-Query to Microsoft's PPA.SYS/PPA3.SYS driver(s), Removal of this driver can have some bad side effects you may not see until such time as you ae in need of a critical restore. I would recommend _not_ uninstalling it!
Sonic Solutions produces Roxio products.
Microsoft Online Crash Analysis diagnosed drvmcdb.sys as the probable cause of a crash which occured when I booted up my pc running XP. It was identified as being a Sonic d/dvd recording software component
  Nick Rumin  
It causes your external hard drives to have "delay write failure"
It is associated with the DLA program which is part of the MyDVD Deluxe Suite made by Sonic. It causes intermittently a blue screen crash on boot up. Sonic have advised me that they have an upgrade which solves this problem. Have not tried it yet
  Nick Rumin  
windows XP does not work without it!! Do NOT remove it. I almost lost all my data doing it.
  Alexandre Cruz  
Device driver for external disk sonic distributed by Formac
  Olivier DAHER  
I removed it and my computer refused to boot. Don't remove it.
Every crash (Blue Screen) while my Dell was running idle (windows XP pro) was caused by this driver acording to Microsoft Crash Analysis which directed me to sonic solutions to solve the problem???
deleted in real trouble,
[from Sonic v3.21.65a] Apparently also used by my PlexTor USB Mass memory stick. No problem related to BSOD on boot up on XP Pro. Not running Veritas Software. Have RecordNow DX but never failed.
  Dutch Gemini  
Removal resulted in inability to boot XP Pro SP1. I'm looking at a complete restore as system (HP) will not even start in Safe Mode.
  Steve A.  
Causes my computer to crash. No help from sonic .Want me to upgrade ? Yaa wright
It is used by Sonic Solutions DLA. Vista says it incompatible. I can't remove it. When I tried Vista fails to boot and I am forced to do a repair install and choose System Restore.
I removed it from my Vista install as it was causing a startup error and now I don't have a DVD drive anymore
It may have caused my external hard drive to misbehave
It can be removed by uninstall DLA related software. It solves the "problem caused by sonic solution CD/DVD recording software component (DRVMCDB.SYS) which reboot your pc whenever it tries to read DVD.
Windows Vista disables the driver because it's not compatible
  Freek Wiljouw  
1) they auto install for LTO-3 tape drives and cause the application to hang and not write data. 2) removing or renaming the drivers caused the computer to go into a continual reboot.
  Mark Wise  
I believe it was OEM installed on a ThinkPad laptop. Disabling it (used autoruns.exe) causes BSOD on startup.
  stevesliva   (further information)
Like Nick Rumin says "It is associated with the DLA program which is part of the MyDVD Deluxe Suite made by Sonic." I did a scan disk , xpsp2, instead of boot after the scan, blue screen crash due to the driver
  Enrico Grassi, Italy  
This file is installed with Roxio / Sonic solutions for the direct to disc. It always runs and sometimes causes the computer to crash. To remove it, uninstall every software from Roxio / Sonic Solutions, then reboot. You'd better choose another burning software, like Nero.
  Mugen Mogwa├»  
It causes "near failure" on XP Pro startup since last MS updates for Sep 07. Roxio's solutions was to suggest I buy new software from them. How wonderful.
  Bernie C  
My crash happened right after I dismounted a U3 flash drive. This PC was fine for ~2 years before I got this flash drive. U3 presents a virtual CDROM drive to the system, so there may be a connection.
  Michael Lee   (further information)
drvmcdb.sys can be removed from your system successfully AFTER you remove the filter references to it. It attaches itself to the lowerfilters for any hard drive and CD/DVD drive in your system. You need to remove the references to them before deleting the file otherwise as the hard drives try to come up you will experience the infinate reboot issue stated in the comments. See the link fo the how to:
  John L   (further information)
File is Created By Veritas. If Windows tries to use this as the Device Driver for your Hard Disk C: you will get a filter error. Microsoft has a cure for this problem. See Link
  Bob   (further information)
crashed by xp at start
I was told that in IE7 the DLA for your DELL is fine, But upgrade to IE8 and BLUE SCREENS. IE8 Becomes part of the OS System.
  Keith Rodgers  
Updated drvncdb.sys driver for Microsoft Windows NT 4.0. Microsoft has released Service Pack 4 for NT 4.0. With this release, we have found a conflict with a driver in HP Colorado Backup II (CB II, both the 4.0 and 6.0 releases). The driver is DRVNCDB.SYS, which causes problems the way the new Service Pack 4 handles the memory allocation process. CB II will not function properly, nor will it shut down properly, requiring the user to reboot. The problem is corrected by downloading the updated DRVNCDB.SYS file from HP.
After getting the drvmcdb.sys error message, I couldn't map a new Seagate external drive on my computer, since it uses this sys file as one of it's drivers. However, by going to My Computer / Manage / Disk Management, I could manually assign a drive letter and then see the new drive on my computer.
  Bren Percival  
Window XP sent me an error report. Sonic Solutions CD/DVD Recording Software Component (DRVMCDB.SYS)
  Todd G. Elliott  
I think it helps Windows 7 recognize usb drives, my Windows 7 would not recognize my Garmin or usb thumb drive until copied this file from my Windows XP computer
  Christina W  
I don't think it's dangerous. It is essential, but it's not compatible with Win7

Rating chart

Summary: Average user rating of drvmcdb.sys: based on 32 votes with 34 user comments. 8 users think drvmcdb.sys is essential for Windows or an installed application. 5 users think it's probably harmless. 10 users think it's neither essential nor dangerous. 5 users suspect danger. 4 users think drvmcdb.sys is dangerous and recommend removing it. 6 users don't grade drvmcdb.sys ("not sure about it").

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Best practices for resolving drvmcdb issues

A clean and tidy computer is the key requirement for avoiding problems with drvmcdb. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the drvmcdb.sys process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

drvmcdb.sys [all]