diff --git a/src/lib.rs b/src/lib.rs
index 6b633b6..2397e09 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -20,4 +20,5 @@ pub mod unpackers {
 pub mod utils {
     pub mod bin;
     pub mod fs;
+    pub mod str;
 }
diff --git a/src/parsers/paramdef.rs b/src/parsers/paramdef.rs
index 42eb1df..a3e3e70 100644
--- a/src/parsers/paramdef.rs
+++ b/src/parsers/paramdef.rs
@@ -23,6 +23,7 @@ impl ParamdefHeader {
     pub fn use_be(&self) -> bool { use_be(self.endianness) }
     pub fn has_ofs_fields(&self) -> bool { has_ofs_fields(self.format_version) }
     pub fn has_64b_ofs_desc(&self) -> bool { self.format_version >= 201 }
+    pub fn can_have_bit_size(&self) -> bool { self.format_version >= 102 }
 }
 
 fn use_be(endianness: u8) -> bool { endianness == 0xFF }
@@ -80,7 +81,25 @@ pub struct ParamdefField {
     pub description: Option<String>,
 }
 
-pub union ParamdefEntryDescOffset {
+impl ParamdefField {
+    /// Return the bit size for this field, or 0 if unknown.
+    ///
+    /// It is contained in the internal name, unsure if there is a
+    /// better way to get it.
+    pub fn bit_size(&self) -> usize {
+        if let Some(name) = &self.internal_name {
+           if !name.contains(":") {
+               return 0
+           }
+           if let Some(bit_size_str) = name.split(":").last().and_then(|s| Some(s.trim())) {
+               return bit_size_str.parse::<usize>().unwrap_or(0)
+           }
+        }
+        0
+    }
+}
+
+pub union ParamdefFieldDescOffset {
     ofs32: u32,
     ofs64: u64,
 }
@@ -166,5 +185,5 @@ pub fn parse(i: &[u8]) -> IResult<&[u8], Paramdef> {
         field.description = Some(sjis_to_string_lossy(sjis_desc));
     }
 
-    Ok((i, Paramdef { header, fields: fields }))
+    Ok((i, Paramdef { header, fields }))
 }
diff --git a/src/unpackers/paramdef.rs b/src/unpackers/paramdef.rs
index d3c3045..1c99035 100644
--- a/src/unpackers/paramdef.rs
+++ b/src/unpackers/paramdef.rs
@@ -5,6 +5,7 @@ use nom::Err::{Error as NomError, Failure as NomFailure};
 use crate::parsers::paramdef;
 use crate::unpackers::errors::UnpackError;
 use crate::utils::fs as utils_fs;
+use crate::utils::str as utils_str;
 
 pub fn load_paramdef_file(paramdef_path: &str) -> Result<paramdef::Paramdef, UnpackError> {
     let paramdef_data = utils_fs::open_file_to_vec(path::Path::new(paramdef_path))?;
@@ -25,16 +26,35 @@ pub fn print_paramdef(paramdef: &paramdef::Paramdef) {
         paramdef.header.data_version, paramdef.header.format_version,
         paramdef.header.num_fields);
 
+    let mut row_size = 0;
+    let mut bit_count = 0;
     for field in &paramdef.fields {
-        println!("  - [{}] {} ({}) {} ({}, {} bytes)",
+        let bit_size = field.bit_size();
+        let size_str = match bit_size {
+            0 => utils_str::n_plural(field.byte_count as i32, "byte", "bytes"),
+            x => utils_str::n_plural(x as i32, "bit", "bits")
+        };
+
+        println!("  - [{}] {} ({}) {} ({}, {})",
             field.sort_id, field.display_name,
             field.internal_name.as_ref().unwrap_or(&String::from("<noname>")),
-            field.display_type, field.internal_type, field.byte_count);
+            field.display_type, field.internal_type, size_str);
         println!("    Values: default {}, range [{}, {}], inc {}",
             field.default_value, field.min_value, field.max_value, field.increment);
         if let Some(desc) = &field.description {
             println!("    Description: {}", desc);
         }
-        println!("    Edit flags: {:X}", field.edit_flags);
+
+        if bit_size != 0 {
+            bit_count += bit_size;
+            while bit_count >= 8 {
+                bit_count -= 8;
+                row_size += 1;
+            }
+        } else {
+            row_size += field.byte_count;
+        }
     }
+
+    println!("Size per row: {}", utils_str::n_plural(row_size as i32, "byte", "bytes"));
 }
diff --git a/src/utils/str.rs b/src/utils/str.rs
new file mode 100644
index 0000000..6c41d70
--- /dev/null
+++ b/src/utils/str.rs
@@ -0,0 +1,10 @@
+pub fn plural<'a>(num: i32, singular_name: &'a str, plural_name: &'a str) -> &'a str {
+    match num {
+        1 => singular_name,
+        _ => plural_name,
+    }
+}
+
+pub fn n_plural<'a>(num: i32, singular_name: &'a str, plural_name: &'a str) -> String {
+    format!("{} {}", num, plural(num, singular_name, plural_name))
+}