diff --git a/src/_h5ai/conf/options.json b/src/_h5ai/conf/options.json
index 18407dd4..6ac2af73 100644
--- a/src/_h5ai/conf/options.json
+++ b/src/_h5ai/conf/options.json
@@ -262,7 +262,7 @@ Options
 	*/
 	"preview-vid": {
 		"enabled": true,
-		"types": ["vid"]
+		"types": ["vid-avi", "vid-flv", "vid-mkv", "vid-mov", "vid-mp4", "vid-mpg", "vid-webm"]
 	},
 
 	/*
@@ -325,8 +325,8 @@ Options
 	*/
 	"thumbnails": {
 		"enabled": true,
-		"img": ["img", "img-bmp", "img-gif", "img-ico", "img-jpg", "img-png"],
-		"mov": ["vid"],
+		"img": ["img-bmp", "img-gif", "img-ico", "img-jpg", "img-png"],
+		"mov": ["vid-avi", "vid-flv", "vid-mkv", "vid-mov", "vid-mp4", "vid-mpg", "vid-webm"],
 		"doc": ["x-pdf", "x-ps"],
 		"delay": 1,
 		"size": 96,
diff --git a/src/_h5ai/conf/types.json b/src/_h5ai/conf/types.json
index 2dc198a7..b1606742 100644
--- a/src/_h5ai/conf/types.json
+++ b/src/_h5ai/conf/types.json
@@ -57,7 +57,19 @@ File types mapped to file extensions
 	"txt-tex":			["*.tex"],
 	"txt-vcal":			["*.vcal"],
 	"txt-xml":			["*.xml"],
-	"vid":				["*.avi", "*.flv", "*.mkv", "*.mov", "*.m4v", "*.mp4", "*.mpg", "*.rm", "*.swf", "*.ts", "*.vob", "*.webm", "*.wmv"],
+	"vid":				[],
+	"vid-avi":			["*.avi"],
+	"vid-flv":			["*.flv"],
+	"vid-mkv":			["*.mkv"],
+	"vid-mov":			["*.mov"],
+	"vid-mp4":			["*.mp4", "*.m4v"],
+	"vid-mpg":			["*.mpg"],
+	"vid-rm":			["*.rm"],
+	"vid-swf":			["*.swf"],
+	"vid-ts":			["*.ts"],
+	"vid-vob":			["*.vob"],
+	"vid-webm":			["*.webm"],
+	"vid-wmv":			["*.wmv"],
 	"x":				[],
 	"x-calc":			["*.ods", "*.ots", "*.xlr", "*.xls", "*.xlsx"],
 	"x-doc":			["*.doc", "*.docx", "*.odm", "*.odt", "*.ott"],