DVR to AIFC Converter
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Supports: DVR
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Need help?DVR to AIFC Converter
DVR here means DVR-MS, the recorded-TV format that Windows Media Center wrote on Windows XP Media Center Edition, Vista, and Windows 7. AIFC (.aifc, also written AIFF-C) is Apple's Audio Interchange File Format, and on this tool it defaults to uncompressed PCM — the Mac-native counterpart to a WAV file. This converter is an audio extraction: it pulls the soundtrack out of the DVR-MS recording and writes it to an AIFC file. The video is discarded.
DVR-MS Format at a Glance
| Property | Value |
|---|---|
| Full name | Microsoft Digital Video Recording (Stream Buffer) |
| Container | ASF (Advanced Systems Format) |
| Video codec | MPEG-2 |
| Audio codec | MP2 (MPEG-1 Audio Layer II) or Dolby Digital AC-3 |
| Created by | Windows XP Media Center Edition, Vista, and Windows 7 |
| Written by | Stream Buffer Engine (DirectShow, since Windows XP SP1) |
| Copy protection | Broadcast-flag DRM possible; protected files play only on the recording device |
| Replaced by | WTV (Windows Media Center TV Pack 2008 onward) |
AIFC Format at a Glance
| Property | Value |
|---|---|
| Full name | Audio Interchange File Format — Compressed (AIFF-C) |
| Developed by | Apple Inc. |
| Released | AIFF January 1988; AIFF-C July 1991 |
| Default payload here | Uncompressed PCM (compression type "NONE") |
| Based on | Electronic Arts' IFF (WAV is the RIFF/little-endian counterpart) |
| Typical size | About 10 MB per minute of 16-bit, 44.1 kHz stereo |
| Best for | Lossless editing in Logic Pro, GarageBand, and other Mac audio apps |
| Native support | macOS, iOS, and most cross-platform audio editors |
How to Convert DVR to AIFC
- Upload Your DVR File: Drag and drop the .dvr-ms recording onto the page or click "+ Add Files." You can queue several recordings and process them with the same settings.
- Set Audio Sample Rate and Channel: Leave both on "Original" to keep the broadcast's rate and stereo layout, or pick a sample rate (for example 44.1 kHz) and switch to Mono under Audio Channel to shrink the file.
- Trim to the Segment You Want (Optional): Use Trim to set a start time and duration so the AIFC contains only the portion you need instead of the full program.
- Convert and Download: Click "Convert" and save the AIFC. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.
Frequently Asked Questions
Will converting DVR-MS to AIFC improve the audio quality?
No. DVR-MS audio is stored as lossy MP2 or AC-3, and encoding it to uncompressed PCM AIFC cannot recover detail that was already discarded. What you gain is a clean, editable lossless container that adds no further loss from this point on — useful if you plan to edit the audio on a Mac. If you only want a small, portable file, convert DVR to MP3 instead.
Why is my AIFC file so large compared with the original recording?
Because the default AIFC payload is uncompressed PCM, which carries every sample at full size — roughly 10 MB per minute for 16-bit, 44.1 kHz stereo, the same size class as a WAV. The original DVR-MS is smaller because its audio is compressed. To keep the file lossless but smaller you would need a compressed format; for a portable result, MP3 is the better target.
Is AIFC the same thing as WAV?
They are close cousins. AIFF/AIFC is Apple's interchange format built on Electronic Arts' IFF, while WAV is built on Microsoft's RIFF, the little-endian counterpart. Both hold uncompressed PCM at the same quality and size. AIFC is the more natural fit on macOS and in Logic Pro or GarageBand; if you are staying on Windows, convert DVR to WAV is the equivalent.
My DVR-MS file will not convert. Why?
Recorded-TV files can carry a broadcast-flag DRM that restricts playback and copying to the original Windows Media Center machine. A protected recording cannot be decoded by any third-party tool, online or offline — only the device that recorded it can read it. We can only extract audio from non-protected DVR-MS recordings.
Does the AIFC keep the original broadcast sample rate?
Yes, if you leave Audio Sample Rate on "Original." DVR-MS broadcast audio is commonly 48 kHz; keeping "Original" preserves that exactly. Choose a specific rate from the dropdown only if your audio app expects a fixed value such as 44.1 kHz, which is standard for CD-quality work.
What happens to the video track?
It is discarded. This tool writes an audio-only AIFC, so the MPEG-2 picture from the recording is not included in the output. If you need the video as well, convert the DVR-MS to a video format instead and extract the audio separately.
What is the difference between AIFC and AIFF?
AIFF (1988) always stores plain uncompressed PCM. AIFF-C, or AIFC (1991), added a compression-type field so the same container can also hold compressed audio — but on this tool that field is set to "NONE," so the output is uncompressed PCM and, in practice, interchangeable with an AIFF file. Both open in Logic Pro, GarageBand, QuickTime, and most cross-platform editors; pick AIFC here only if a specific app or workflow expects the .aifc extension.
Are my uploaded recordings kept private?
Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and your recordings are never shared or made public. In our testing, a one-minute stereo extraction at 44.1 kHz produced an AIFC of roughly 10 MB, consistent with uncompressed PCM at that rate.