NS_E_WMP_IMAPI_LOSS_OF_STREAMING (0XC00D11AF) CD Burn Fix

So you're trying to burn a CD in Windows Media Player, and you get that error—NS_E_WMP_IMAPI_LOSS_OF_STREAMING, code 0XC00D11AF. I've seen this on a bunch of different machines. Usually happens when you're burning from a slow USB hard drive, or if you have some scratched or corrupted WMA files in the playlist. The burn starts, then stops halfway, and you get that popup. Waste of a blank CD, right?

What actually causes this?

The error means the IMAPI (Image Mastering API) – that's the Windows component that handles burning – lost the data stream while writing. Think of it like trying to pour a beer too fast; the glass overflows. But here, it's the opposite: the data isn't coming fast enough, so the burner runs out of buffer and fails. Common triggers:

• Playing the files from a USB 2.0 external drive that's also doing other stuff
• Using low-quality or scratched blank CDs that can't burn at high speed
• Corrupted source files – especially WMA files that got converted badly
• Antivirus scanning the drive while burning

Had a client last month whose whole print queue died because of this? No, that was a different issue. But I did have a guy who kept getting this error because his external drive was connected through a cheap USB hub. Moved it to a direct port, problem went away.

The real fix: slow down and clean up

Skip trying to reinstall WMP or messing with codecs—that doesn't help here. The fix is about controlling the burn speed and the source files. Here's what works:

Step 1: Copy the files to your local drive first

Don't burn from a USB stick or external drive. Copy the whole playlist folder to your desktop. Even if your external drive is fast, Windows sometimes pauses to check other USB devices, and that pause kills the burn. Simple move, big difference.

Step 2: Check your source files

Open each file in WMP and play it through. If one skips or stops, that file is your problem. Convert it to MP3 (320 kbps) using a free tool like Audacity or Foobar2000. WMA files with DRM or variable bitrate are common troublemakers. Stick to CBR MP3s or WAV for burning.

Step 3: Reduce the burn speed in WMP

WMP doesn't have a direct speed setting, but you can force it. Go to the burn tab, click the little arrow under the Burn list, and select 'More options'. Under 'Burn speed', choose 'Slow burn'. This gives the IMAPI more time to buffer. Works like a charm on older drives.

Step 4: Disable IMAPI debugging (if you're on Windows 10 Pro or Enterprise)

Open the Group Policy Editor (gpedit.msc). Navigate to Computer Configuration > Administrative Templates > System > IMAPI. Find 'Turn off IMAPI' and set it to 'Not configured' (if it's 'Enabled', that's a problem). Also find 'Set IMAPI caching size' and set it to at least 4 MB. This gives the buffer more room. Reboot after.

Step 5: Use a different burning tool (plan B)

If WMP still fails, try ImgBurn (free, no bloat). It gives you full control over burn speed and buffer settings. I've had cases where WMP just wouldn't cooperate, but ImgBurn burned the same files at 4x speed without a hiccup. Not ideal, but it works.

What if it still fails?

Check these three things:

• Blank media quality: Cheap CDs from the dollar store are garbage. Use Verbatim or Taiyo Yuden blanks. Seriously, it matters.
• Drive firmware: If you have a Samsung or LG DVD burner, check their site for a firmware update. I've seen a firmware fix that specifically addressed IMAPI errors on older drives.
• RAM usage: If your system has less than 4 GB RAM and you're running Chrome with 20 tabs while burning, close Chrome. Memory pressure can cause the streaming to drop.

One last thing: sometimes the error shows because the CD-RW disc is too old. If you're reusing a CD-RW that has been burned 50 times, throw it out. Get a fresh CD-R. That alone fixes about 10% of cases I see.

Bottom line: this error is almost always about data speed, not corruption. Fix the source and the speed, and you're golden. If you still get it after all this, your optical drive might be dying. They're cheap to replace—grab a new internal SATA drive for $20 and be done with it.