diff --git a/doc/disk-zilogmcz.md b/doc/disk-zilogmcz.md
index fdc2be13..7d2cb218 100644
--- a/doc/disk-zilogmcz.md
+++ b/doc/disk-zilogmcz.md
@@ -20,11 +20,8 @@ bytes per sector --- 128 bytes of user payload plus two two-byte metadata
 words used to construct linked lists of sectors for storing files. These
 stored 320kB each.
 
-FluxEngine has experimental read support for these disks, based on a single
-Catweasel flux file I've been able to obtain, which only contained 70 tracks.
-I haven't been able to try this for real. If anyone has any of these disks,
-an 8-inch drive, a FluxEngine and the appropriate adapter, please [get in
-touch](https://github.com/davidgiven/fluxengine/issues/new)...
+FluxEngine has read support for these, including support for RIO's ZDOS file
+system.
 
 ## Options
 
diff --git a/doc/filesystem.md b/doc/filesystem.md
index b2822e71..3e31f1cd 100644
--- a/doc/filesystem.md
+++ b/doc/filesystem.md
@@ -26,6 +26,7 @@ The following file systems are supported so far.
 | Macintosh HFS                            |   Y   |   Y    | Only AppleDouble files may be written |
 | pSOS' PHILE                              |   Y   |        | Probably unreliable due to lack of documentation |
 | Smaky 6                                  |   Y   |        |       |
+| Zilog MCZ RIO's ZDOS                     |   Y   |        |       |
 {: .datatable }
 
 Please not that Atari disks do _not_ use standard FatFS, and the library I'm
diff --git a/lib/vfs/zdos.cc b/lib/vfs/zdos.cc
index 9c434c11..aa47bb7a 100644
--- a/lib/vfs/zdos.cc
+++ b/lib/vfs/zdos.cc
@@ -161,12 +161,15 @@ class ZDosFilesystem : public Filesystem
             attributes[Filesystem::LENGTH] = std::to_string(length);
             attributes[Filesystem::FILE_TYPE] = "file";
             attributes[Filesystem::MODE] = mode;
-            attributes["zdos.descriptor_record"] = std::to_string(descriptorBlock);
+            attributes["zdos.descriptor_record"] =
+                std::to_string(descriptorBlock);
             attributes["zdos.first_record"] = std::to_string(zd.firstRecord);
             attributes["zdos.record_size"] = std::to_string(zd.recordSize);
             attributes["zdos.record_count"] = std::to_string(zd.recordCount);
-            attributes["zdos.last_record_size"] = std::to_string(zd.lastRecordSize);
-            attributes["zdos.start_address"] = fmt::format("0x{:04x}", zd.startAddress);
+            attributes["zdos.last_record_size"] =
+                std::to_string(zd.lastRecordSize);
+            attributes["zdos.start_address"] =
+                fmt::format("0x{:04x}", zd.startAddress);
             attributes["zdos.type"] = fileTypeMap.at(zd.type & 0xf0);
             attributes["zdos.ctime"] = convertTime(zd.ctime);
             attributes["zdos.mtime"] = convertTime(zd.mtime);
@@ -277,7 +280,8 @@ private:
 
                 auto dirent = std::make_unique<ZDosDirent>(
                     this, filename, descriptorBlock);
-                _usedBlocks += (dirent->zd.recordCount * dirent->zd.recordSize) / 0x80 + 1;
+                _usedBlocks +=
+                    (dirent->zd.recordCount * dirent->zd.recordSize) / 0x80 + 1;
                 _dirents.push_back(std::move(dirent));
             }
         }
diff --git a/src/formats/zilogmcz.textpb b/src/formats/zilogmcz.textpb
index 71fdd812..c6cae4f9 100644
--- a/src/formats/zilogmcz.textpb
+++ b/src/formats/zilogmcz.textpb
@@ -21,11 +21,8 @@ bytes per sector --- 128 bytes of user payload plus two two-byte metadata
 words used to construct linked lists of sectors for storing files. These
 stored 320kB each.
 
-FluxEngine has experimental read support for these disks, based on a single
-Catweasel flux file I've been able to obtain, which only contained 70 tracks.
-I haven't been able to try this for real. If anyone has any of these disks,
-an 8-inch drive, a FluxEngine and the appropriate adapter, please [get in
-touch](https://github.com/davidgiven/fluxengine/issues/new)...
+FluxEngine has read support for these, including support for RIO's ZDOS file
+system.
 >>>
 
 documentation: