diff --git a/.appveyor.yml b/.appveyor.yml
index c96fd63..711d013 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -23,5 +23,5 @@ install:
 
 - pip install -e .[tests,io]
 
-test_script: pytest -xrsv
+test_script: pytest -rsv
 
diff --git a/.travis.yml b/.travis.yml
index 489f3b9..82a7df2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,7 +36,7 @@ install:
 script:
 - make install -C rnxcmp
 
-- pytest -xrsv
+- pytest -rsv
 - flake8
 - mypy . --ignore-missing-imports
 
diff --git a/README.md b/README.md
index 28f6761..c66d336 100644
--- a/README.md
+++ b/README.md
@@ -10,13 +10,14 @@
 
 # GeoRinex
 
-RINEX 3 and RINEX 2 reader in Python -- reads NAV and OBS GPS RINEX data into
+RINEX 3 and RINEX 2 reader and batch conversion to NetCDF4 / HDF5 in Python.
+Batch converts NAV and OBS GPS RINEX data into
 [xarray.Dataset](http://xarray.pydata.org/en/stable/api.html#dataset)
 for easy use in analysis and plotting.
 This gives remarkable speed vs. legacy iterative methods, and allows for HPC / out-of-core operations on massive amounts of GNSS data.
 GeoRinex works in Python ≥ 3.6.
 
-Pure compiled language RINEX processors such as within Fortran NAPEOS give perhaps 500x faster performance than this Python program.
+Pure compiled language RINEX processors such as within Fortran NAPEOS give perhaps 2x faster performance than this Python program--that's pretty good for a scripted language like Python!
 However, the initial goal of this Python program was to be for one-time offline conversion of ASCII (and compressed ASCII) RINEX to HDF5/NetCDF4, where ease of cross-platform install and correctness are primary goals.
 
 ![RINEX plot](tests/example_plot.png)
@@ -84,8 +85,9 @@ The simplest command-line use is through the top-level `ReadRinex` script.
   ```
 * Batch convert RINEX to NetCDF4 / HDF5 (this example for RINEX 2 OBS):
   ```sh
-  ./rnx2hdf5.py -o ~/data -g "*.*o"
+  rnx2hdf5 ~/data "*o" -o ~/data
   ```
+  in this example, the suffix `.nc` is appended to the original RINEX filename: `my.15o` => `my.15o.nc`
 
 By default all plots and status messages are off, unless using the `-v --verbose` option to save processing time.
 
diff --git a/tests/test_conv.py b/tests/test_conv.py
index f4104ed..ae3363f 100755
--- a/tests/test_conv.py
+++ b/tests/test_conv.py
@@ -8,10 +8,13 @@
 import xarray
 from pathlib import Path
 import georinex as gr
+import os
+WIN32 = os.name == 'nt'
 #
 R = Path(__file__).parent
 
 
+@pytest.mark.xfail(WIN32, reason='Windows PermissionError for missing files')
 def test_bad_files():
     with pytest.raises(ValueError):
         with tempfile.NamedTemporaryFile() as f: