diff --git a/dlibrary/dlibrary.py b/dlibrary/dlibrary.py
index 46da923..d0c17dc 100755
--- a/dlibrary/dlibrary.py
+++ b/dlibrary/dlibrary.py
@@ -31,7 +31,7 @@ DLSITE_ID_REGEX = re.compile('^[BR]J[0-9]+$')
 FANZA_ID_REGEX = re.compile('^d_[0-9]+$')
 FAKKU_ID_REGEX = re.compile('.*_FAKKU$')
 
-HI_RES_REGEX = re.compile('高解像度', re.I)
+HI_RES_REGEX = re.compile('高解像度|原寸', re.I)
 NO_TONE_REGEX = re.compile('トーン(効果)?[な無]し|グレースケール', re.I)
 TONE_REGEX = re.compile('トーン(版|(効果)?[有あ]り)', re.I)
 COLOR_REGEX = re.compile('カラー', re.I)
@@ -757,7 +757,7 @@ def complete_prefix_number_ordering(entries):
             cur = unified_indices[i]
             prev = unified_indices[i-1]
             for level in range(min(len(cur), len(prev))):
-                if cur[level] != prev[level]:
+                if cur[level] != prev[level] and not (cur[level] == 5 and prev[level] == 0):
                     delta = cur[level] - prev[level]
                     min_delta_by_level[level] = min(min_delta_by_level.get(level, delta), delta)
     if any(delta > 2 for delta in min_delta_by_level.values()):