public RecordDisk(string driverName)
{
disk = new DiskUtil(driverName);
recordControl = new RecordControl(disk);
if (recordControl.IsValid == false) return;
long offset = 512;
int index = 0;
while (true)
{
RecordFile file = new RecordFile(disk, offset,index++);
if (file.Length == 0) break;
listFile.Add(file);
offset += file.Length;
}
}