diff --git a/examples/EAGLE_12/eagle_12.yml b/examples/EAGLE_12/eagle_12.yml
index af55da76ff513548bee52e51993fa8b78cfdc9e3..f7b11c167eceefe9c285b6558756332aed6e6e0c 100644
--- a/examples/EAGLE_12/eagle_12.yml
+++ b/examples/EAGLE_12/eagle_12.yml
@@ -30,6 +30,7 @@ Snapshots:
   basename:            eagle # Common part of the name of output files
   time_first:          1.    # Time of the first output (in internal units)
   delta_time:          1e-3  # Time difference between consecutive outputs (in internal units)
+  compression:         4
 
 # Parameters governing the conserved quantities statistics
 Statistics:
diff --git a/examples/EAGLE_25/eagle_25.yml b/examples/EAGLE_25/eagle_25.yml
index c01abfe94b98e8366ac05f1e3bce50a3931738c5..c8bdd2a88e04b2df051a1ee725b2e06034247191 100644
--- a/examples/EAGLE_25/eagle_25.yml
+++ b/examples/EAGLE_25/eagle_25.yml
@@ -21,6 +21,7 @@ Snapshots:
   basename:            eagle # Common part of the name of output files
   time_first:          0.    # Time of the first output (in internal units)
   delta_time:          1e-3  # Time difference between consecutive outputs (in internal units)
+  compression:         4
 
 # Parameters governing the conserved quantities statistics
 Statistics:
diff --git a/examples/EAGLE_6/eagle_6.yml b/examples/EAGLE_6/eagle_6.yml
index ab33b79e80e69bcdac6a10f793930eca203cb26f..9a6edb9d3801cd008e467f237c41e08f71b50372 100644
--- a/examples/EAGLE_6/eagle_6.yml
+++ b/examples/EAGLE_6/eagle_6.yml
@@ -21,6 +21,7 @@ Snapshots:
   basename:            eagle # Common part of the name of output files
   time_first:          0.    # Time of the first output (in internal units)
   delta_time:          1e-3  # Time difference between consecutive outputs (in internal units)
+  compression:         4
 
 # Parameters governing the conserved quantities statistics
 Statistics:
diff --git a/examples/EvrardCollapse_3D/evrard.yml b/examples/EvrardCollapse_3D/evrard.yml
index 006a22e65d3f674f124ce6c4994e752ba39cd1e1..bc3b76be9547c1ff60bbd7466724b151ff7abd7a 100644
--- a/examples/EvrardCollapse_3D/evrard.yml
+++ b/examples/EvrardCollapse_3D/evrard.yml
@@ -1,5 +1,5 @@
 # Define the system of units to use internally. 
-InternalUnitSystem:
+1;4205;0cInternalUnitSystem:
   UnitMass_in_cgs:     1   # Grams
   UnitLength_in_cgs:   1   # Centimeters
   UnitVelocity_in_cgs: 1   # Centimeters per second
@@ -18,7 +18,8 @@ Snapshots:
   basename:            evrard # Common part of the name of output files
   time_first:          0.       # Time of the first output (in internal units)
   delta_time:          0.1     # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/GreshoVortex_3D/gresho.yml b/examples/GreshoVortex_3D/gresho.yml
index df941450196a7de6cd1471e1d258756ca8c36fb1..f42fcbfd00941e7b9c5c09c0d2e3118f5cc1f57d 100644
--- a/examples/GreshoVortex_3D/gresho.yml
+++ b/examples/GreshoVortex_3D/gresho.yml
@@ -21,7 +21,8 @@ Snapshots:
   basename:            gresho # Common part of the name of output files
   time_first:          0.     # Time of the first output (in internal units)
   delta_time:          1e-1   # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/KelvinHelmholtzGrowthRate_3D/kelvinHelmholtzGrowthRate.yml b/examples/KelvinHelmholtzGrowthRate_3D/kelvinHelmholtzGrowthRate.yml
index 380dc2ab3a530e89b952aa41f425e50709d73ee9..3133e2769e81b80c18760e8258665fc1a6eee6ca 100644
--- a/examples/KelvinHelmholtzGrowthRate_3D/kelvinHelmholtzGrowthRate.yml
+++ b/examples/KelvinHelmholtzGrowthRate_3D/kelvinHelmholtzGrowthRate.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            kelvinHelmholtzGrowthRate  # Common part of the name of output files
   time_first:          0.               # Time of the first output (in internal units)
   delta_time:          0.04      # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/Noh_3D/noh.yml b/examples/Noh_3D/noh.yml
index 1d126f19babd0c9fe28afff907b3fe8259467a24..88119827501e17cc26742e8cad92a3611e83faa7 100644
--- a/examples/Noh_3D/noh.yml
+++ b/examples/Noh_3D/noh.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            noh # Common part of the name of output files
   time_first:          0.    # Time of the first output (in internal units)
   delta_time:          5e-2  # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          3e-3 # Time between statistics output
diff --git a/examples/SedovBlast_3D/sedov.yml b/examples/SedovBlast_3D/sedov.yml
index b80be1954491b19234ce7385baed83931d82433f..057e5a18acba2a1e8211d40f15ffde35b2019a9b 100644
--- a/examples/SedovBlast_3D/sedov.yml
+++ b/examples/SedovBlast_3D/sedov.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            sedov # Common part of the name of output files
   time_first:          0.    # Time of the first output (in internal units)
   delta_time:          1e-2  # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-3 # Time between statistics output
diff --git a/examples/SodShockSpherical_3D/sodShock.yml b/examples/SodShockSpherical_3D/sodShock.yml
index a26ab95b21c782ce83310038432ac08df0e024c3..52c06dd65ec0b37a0ec0707315ccd15356a7b2d6 100644
--- a/examples/SodShockSpherical_3D/sodShock.yml
+++ b/examples/SodShockSpherical_3D/sodShock.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            sodShock # Common part of the name of output files
   time_first:          0.       # Time of the first output (in internal units)
   delta_time:          0.1      # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/SodShock_3D/sodShock.yml b/examples/SodShock_3D/sodShock.yml
index 51a188b6d4537d490cb837a03dab15f74c3b083c..26fbfe4faacf2bbbfd9b077bf9f9c075ce93ef6d 100644
--- a/examples/SodShock_3D/sodShock.yml
+++ b/examples/SodShock_3D/sodShock.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            sodShock # Common part of the name of output files
   time_first:          0.       # Time of the first output (in internal units)
   delta_time:          0.2      # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/VacuumSpherical_3D/vacuum.yml b/examples/VacuumSpherical_3D/vacuum.yml
index 881b155b62c7f1f2af12a1d013ff5c05f1c16a88..92164a18a46404ad7730f3411dc14953139501bb 100644
--- a/examples/VacuumSpherical_3D/vacuum.yml
+++ b/examples/VacuumSpherical_3D/vacuum.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            vacuum # Common part of the name of output files
   time_first:          0.       # Time of the first output (in internal units)
   delta_time:          0.05     # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output
diff --git a/examples/Vacuum_3D/vacuum.yml b/examples/Vacuum_3D/vacuum.yml
index 5ef5ce3da68febb086a14ad1a2207711f680d9ff..45a6b73d54de69d71e194ec074ebdd00cd6a57c0 100644
--- a/examples/Vacuum_3D/vacuum.yml
+++ b/examples/Vacuum_3D/vacuum.yml
@@ -18,7 +18,8 @@ Snapshots:
   basename:            vacuum # Common part of the name of output files
   time_first:          0.       # Time of the first output (in internal units)
   delta_time:          0.1     # Time difference between consecutive outputs (in internal units)
-
+  compression:         4
+  
 # Parameters governing the conserved quantities statistics
 Statistics:
   delta_time:          1e-2 # Time between statistics output