diff --git a/internal/pkg/mediaconvert/command.go b/internal/pkg/mediaconvert/command.go
index 2b68893404..ceb95c85de 100644
--- a/internal/pkg/mediaconvert/command.go
+++ b/internal/pkg/mediaconvert/command.go
@@ -76,8 +76,8 @@ func BuildAudioCommand(opts *Options) []string {
 // BuildRawVideoCommand returns an extremely lightweight ffmpeg command for converting raw video without extra cost.
 func BuildRawVideoCommand(opts *Options) []string {
 	return append(buildCommonComamnd(opts),
-		"-c:v",
-		"copy",
+		"-c:a", "copy", // Copy audio stream
+		"-c:v", "copy", // Copy video stream
 		"-hls_time", "5",
 		"-hls_flags", "split_by_time",
 		"-hls_list_size", "0",
@@ -101,8 +101,8 @@ func BuildScalingVideoCommand(opts *Options) []string {
 	for _, level := range opts.ScalingLevels {
 		result = append(result,
 			"-vf", "scale=-2:"+level[:len(level)-1],
-			"-c:v",
-			"libx264",
+			"-c:a", "copy", // Copy audio stream
+			"-c:v", "libx264",
 			"-preset", "veryfast",
 			"-crf", "23",
 			"-g", "60",
diff --git a/internal/pkg/mediaconvert/command_test.go b/internal/pkg/mediaconvert/command_test.go
index 42ddc4ea4d..b67fe8060b 100644
--- a/internal/pkg/mediaconvert/command_test.go
+++ b/internal/pkg/mediaconvert/command_test.go
@@ -31,7 +31,7 @@ func Test_BuildVideoCommand_Scaling(t *testing.T) {
 		ScalingLevels: []string{"720p", "480p"},
 	})
 
-	const expected = `-threads 4 -i pipe:0 -vf scale=-2:720 -c:v libx264 -preset veryfast -crf 23 -g 60 -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_720p.ts test/1/1_720p_master.m3u8 -vf scale=-2:480 -c:v libx264 -preset veryfast -crf 23 -g 60 -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_480p.ts test/1/1_480p_master.m3u8`
+	const expected = `-threads 4 -i pipe:0 -vf scale=-2:720 -c:a copy -c:v libx264 -preset veryfast -crf 23 -g 60 -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_720p.ts test/1/1_720p_master.m3u8 -vf scale=-2:480 -c:a copy -c:v libx264 -preset veryfast -crf 23 -g 60 -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_480p.ts test/1/1_480p_master.m3u8`
 
 	require.Contains(t, expected, strings.Join(scaleCommand, " "))
 }
@@ -45,7 +45,7 @@ func Test_BuildVideoCommand_Raw(t *testing.T) {
 		Level:    resconv.Level("651:490"),
 	})
 
-	const expected = `"-threads 4 -i pipe:0 -c:v copy -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_480p.ts test/1/1_480p_master.m3u8`
+	const expected = `"-threads 4 -i pipe:0 -c:a copy -c:v copy -hls_time 5 -hls_flags split_by_time -hls_list_size 0 -hls_segment_filename test/1/1_%03d_480p.ts test/1/1_480p_master.m3u8`
 
 	require.Contains(t, expected, strings.Join(rawCommand, " "))
 }
diff --git a/internal/pkg/resconv/resconv_test.go b/internal/pkg/resconv/resconv_test.go
index 48fd291d57..553beb6d05 100644
--- a/internal/pkg/resconv/resconv_test.go
+++ b/internal/pkg/resconv/resconv_test.go
@@ -91,6 +91,11 @@ func Test_Resconv_ShouldReturnCorrectPrefixes(t *testing.T) {
 			res:      "2560:1440",
 			expected: []string{"1080p", "720p"},
 		},
+		{
+			name:     "pixels between 1k and 2k",
+			res:      "2880:1800",
+			expected: []string{"1080p", "720p"},
+		},
 		{
 			name:     "pixels equal to 2k",
 			res:      "3840:2160",