--- nono/host/diskimage.cpp	2026/04/29 17:05:30	1.1.1.6
+++ nono/host/diskimage.cpp	2026/04/29 17:05:43	1.1.1.7
@@ -36,11 +36,10 @@ DiskImage::CreateHandler(const std::stri
 	cow_enable = false;
 
 	// 今の所 Raw しかない
-	driver.reset(new DiskImageRaw(pathname));
-	if ((bool)driver) {
-		return true;
-	}
-	return false;
+	try {
+		driver.reset(new DiskImageRaw(pathname));
+	} catch (...) { }
+	return (bool)driver;
 }