diff --git a/.Rbuildignore b/.Rbuildignore
index a9e16b4..9a37f74 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -5,4 +5,5 @@
 ^README\.*html$
 ^NOTES\.*Rmd$
 ^NOTES\.*html$
-^tools$
\ No newline at end of file
+^tools$
+^cran-comments\.md$
diff --git a/README.Rmd b/README.Rmd
index 5818bb6..23df354 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -13,7 +13,7 @@ The `libmagic` library must be installed on *nix/macOS and available to use this
 
 While the package was developed using the 5.28 version of `libmagic` it has been configured to work with older versions. Note that some fields in the resultant data frame might not be available with older library versions. When using the function `magic_wand_file()` it checks for which version of `libmagic` is installed on your system and provides a suitable `magic.mgc` file for it.
 
-The package also works on Windows but it's a bit of a hack because, well, _Windows_. The Windows version makes two `system2()` calls and relies on Rtools being installed and `file.exe` being available on the Windows `PATH`, so it's sub-optimal at best. Help to get it working in C would be greatly appreciated.
+The package also works on Windows but it's a bit of a hack because, well, _Windows_. The Windows version makes two `system2()` calls and relies on `Rtools` being installed and `file.exe` being available on the Windows `PATH`, so it's sub-optimal at best. Help to get it working in C would be greatly appreciated. Windows folk can go [here](https://github.com/stan-dev/rstan/wiki/Install-Rtools-for-Windows) to find out more info on `Rtools`.
 
 The following functions are implemented:
 
diff --git a/README.md b/README.md
index bf0bd8f..c116cad 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ The `libmagic` library must be installed on \*nix/macOS and available to use thi
 
 While the package was developed using the 5.28 version of `libmagic` it has been configured to work with older versions. Note that some fields in the resultant data frame might not be available with older library versions. When using the function `magic_wand_file()` it checks for which version of `libmagic` is installed on your system and provides a suitable `magic.mgc` file for it.
 
-The package also works on Windows but it's a bit of a hack because, well, *Windows*. The Windows version makes two `system2()` calls and relies on Rtools being installed and `file.exe` being available on the Windows `PATH`, so it's sub-optimal at best. Help to get it working in C would be greatly appreciated.
+The package also works on Windows but it's a bit of a hack because, well, *Windows*. The Windows version makes two `system2()` calls and relies on `Rtools` being installed and `file.exe` being available on the Windows `PATH`, so it's sub-optimal at best. Help to get it working in C would be greatly appreciated. Windows folk can go [here](https://github.com/stan-dev/rstan/wiki/Install-Rtools-for-Windows) to find out more info on `Rtools`.
 
 The following functions are implemented:
 
@@ -81,7 +81,7 @@ library(testthat)
 date()
 ```
 
-    ## [1] "Mon Aug 15 09:30:22 2016"
+    ## [1] "Mon Aug 15 10:19:22 2016"
 
 ``` r
 test_dir("tests/")
diff --git a/cran-comments.md b/cran-comments.md
new file mode 100644
index 0000000..d64a4d6
--- /dev/null
+++ b/cran-comments.md
@@ -0,0 +1,21 @@
+## Test environments
+* local OS X install, R 3.3.1
+* local Windows 10 install, R 3.3.0
+* ubuntu 14.04 (on travis-ci), R 3.3.1
+* win-builder (devel and release)
+
+## R CMD check results
+
+0 errors | 0 warnings | 1 note
+
+* This is a new release.
+
+## Reverse dependencies
+
+This is a new release, so there are no reverse dependencies.
+
+---
+
+* For Unix/Linux the libmagic library is required
+* For Windows, Rtools 3.3 is required
+* Information on how to install those is found in the README.md document
\ No newline at end of file