// sector: byte 0 - minute; byte 1 - second; byte 2 - frame
// does NOT uses bcd format
static long CALLBACK ISOplay(unsigned char *time) {
+ if (numtracks <= 1)
+ return 0;
+
if (SPU_playCDDAchannel != NULL) {
if (subChanMixed) {
startCDDA(MSF2SECT(time[0], time[1], time[2]) * (CD_FRAMESIZE_RAW + SUB_FRAMESIZE));