diff --git a/server/torr/preload.go b/server/torr/preload.go
index 6e9a2be..df1efa6 100644
--- a/server/torr/preload.go
+++ b/server/torr/preload.go
@@ -3,6 +3,8 @@ package torr
 import (
 	"fmt"
 	"io"
+	"server/ffprobe"
+	"strconv"
 	"sync"
 	"time"
 
@@ -63,8 +65,16 @@ func (t *Torrent) Preload(index int, size int64) {
 			}
 		}()
 
+		if ffprobe.Exists() {
+			host := "http://127.0.0.1:" + settings.Port + "/stream?link=" + t.Hash().HexString() + "&index=" + strconv.Itoa(index) + "&play"
+			if data, err := ffprobe.ProbeUrl(host); err == nil {
+				t.BitRate = data.Format.BitRate
+				t.DurationSeconds = data.Format.DurationSeconds
+			}
+		}
+
 		// startend -> 8/16 MB
-		startend := int64(t.Info().PieceLength)
+		startend := t.Info().PieceLength
 		if startend < 8*1024*1024 {
 			startend = 8 * 1024 * 1024
 		}
diff --git a/server/torr/state/state.go b/server/torr/state/state.go
index 7e79ccf..39a96e2 100644
--- a/server/torr/state/state.go
+++ b/server/torr/state/state.go
@@ -61,6 +61,8 @@ type TorrentStatus struct {
 	ChunksReadWasted    int64       `json:"chunks_read_wasted,omitempty"`
 	PiecesDirtiedGood   int64       `json:"pieces_dirtied_good,omitempty"`
 	PiecesDirtiedBad    int64       `json:"pieces_dirtied_bad,omitempty"`
+	DurationSeconds     float64     `json:"duration_seconds,omitempty"`
+	BitRate             string      `json:"bit_rate,omitempty"`
 
 	FileStats []*TorrentFileStat `json:"file_stats,omitempty"`
 }
diff --git a/server/torr/torrent.go b/server/torr/torrent.go
index 7be01c4..689ba67 100644
--- a/server/torr/torrent.go
+++ b/server/torr/torrent.go
@@ -42,6 +42,9 @@ type Torrent struct {
 	PreloadSize    int64
 	PreloadedBytes int64
 
+	DurationSeconds float64
+	BitRate         string
+
 	expiredTime time.Time
 
 	closed <-chan struct{}
@@ -277,6 +280,8 @@ func (t *Torrent) Status() *state.TorrentStatus {
 	st.Data = t.Data
 	st.Timestamp = t.Timestamp
 	st.TorrentSize = t.Size
+	st.BitRate = t.BitRate
+	st.DurationSeconds = t.DurationSeconds
 
 	if t.TorrentSpec != nil {
 		st.Hash = t.TorrentSpec.InfoHash.HexString()