diff --git a/data/sample-entries-boxes.csv b/data/sample-entries-boxes.csv
index d066bc1..1f528df 100644
--- a/data/sample-entries-boxes.csv
+++ b/data/sample-entries-boxes.csv
@@ -78,3 +78,4 @@ vlab,WebVTT Source Label,Text,ISO-Text
 cuvv,HDR Vivid Configuration,Video,UWA
 pcmC,Uncompressed audio PCM configuration,Audio,ISO-UNCA
 lvcC,LCEVC configuration,Video,NALu Video
+acxd,Decoder-specific info for Auro-Cx audio,Audio,Auro