how to retrieve images stored blob and physically store them

[JawwadLone]

hi
i m storing images in oracle 9i .
i m getting them back in byte array .i want to convert the byte array into jpeg image and store them physically on the local disk.i m having problem while converting the byte array in jpeg. i m trying the following code:

  Dim RowPR_PICTURES As PR_PICTURESDS.PR_PICTURESRow
        RowPR_PICTURES = objPR_PICTURESDB.getByPK_PR_PICTURES(ctrFormToolbar.RecordId)
        Dim imgPhoto() As Byte
        'Dim imgfile As File
        '  Dim StreamOfPhoto As New MemoryStream
        Response.Clear()
        Dim EmployeeID As Integer = 0
        Dim EmployeePhoto As System.Drawing.Image
        Dim StreamOfPhoto As New MemoryStream(imgPhoto)
        With RowPR_PICTURES
            imgPhoto = .L_PIC
            StreamOfPhoto.Write(imgPhoto, 10, imgPhoto.Length - 10)
            EmployeePhoto = Bitmap.FromStream(StreamOfPhoto)
            EmployeePhoto.Save("c:\test.jpg", System.Drawing.Imaging.ImageFormat.Jpeg)
        End With