diff --git a/iso9660/byte_position.py b/iso9660/byte_position.py
index 3c13644..ad21126 100644
--- a/iso9660/byte_position.py
+++ b/iso9660/byte_position.py
@@ -36,6 +36,8 @@ def sanitize_field_name(name):
 def sanitize_content_name(name):
     if name == 'Numerical value':
         return 'numerical_value'
+    elif name == '8 bits':
+        return 'numerical_value'
     else:
         return 'bytes'
 
diff --git a/iso9660/byte_position_java.py b/iso9660/byte_position_java.py
index c0633b5..4bf4d2d 100644
--- a/iso9660/byte_position_java.py
+++ b/iso9660/byte_position_java.py
@@ -39,7 +39,7 @@ def render_fields(input_name, fields):
         yield f"public static final int {field.name.upper()}_START = {field.start - 1};"
         yield f"public static final int {field.name.upper()}_END = {field.end - 1};"
 
-    yield f"{pascalcase(input_name)}(byte[] array, int offset) {{"
+    yield f"public {pascalcase(input_name)}(byte[] array, int offset) {{"
     yield "super(array, offset);"
     yield "}"
 
diff --git a/regs/gdrom.csv b/regs/gdrom.csv
index 636fa7e..a166c49 100644
--- a/regs/gdrom.csv
+++ b/regs/gdrom.csv
@@ -1,14 +1,14 @@
-"address","size","name","r/w","description"
-"0018","1","alternate_status","R",
-"0018","1","device_control","W",
-"0080","2","data","RW",
-"0084","1","error","R",
-"0084","1","features","W",
-"0088","1","interrupt_reason","R",
-"0088","1","sector_count","W",
-"008C","1","sector_number","R",
-"0090","1","byte_count_low","RW",
-"0094","1","byte_count_high","RW",
-"0098","1","drive_select","RW",
-"009C","1","status","R",
-"009C","1","command","W",
+"block","address","size","name","r/w","description"
+"gdrom","0018","1","alternate_status","R",
+"gdrom","0018","1","device_control","W",
+"gdrom","0080","2","data","RW",
+"gdrom","0084","1","error","R",
+"gdrom","0084","1","features","W",
+"gdrom","0088","1","interrupt_reason","R",
+"gdrom","0088","1","sector_count","W",
+"gdrom","008C","1","sector_number","R",
+"gdrom","0090","1","byte_count_low","RW",
+"gdrom","0094","1","byte_count_high","RW",
+"gdrom","0098","1","drive_select","RW",
+"gdrom","009C","1","status","R",
+"gdrom","009C","1","command","W",
diff --git a/regs/gdrom.ods b/regs/gdrom.ods
index f6f6647..193d96a 100644
Binary files a/regs/gdrom.ods and b/regs/gdrom.ods differ