Help needed to Create Audio CD from .Wav files using VB 6.0

vbimport

#1

Hi,

I have problem creating regular Audio CD ( so that I can play on my car ) from .wav files that I store in my computer’s hard drive. I have no problem copying it as a data file ( individual .wav files), but I can’t create CDA files. I am using VB6.0 and the NeroCOM component to create this application.

Could you please suggest what would be the solution to this problem? Your scholarly suggestions would be highly appreciated

Thanks a lot ,

anupdh

Here is the code I am using ( modified the example)


Option Explicit

Private Const MAX_PATH = 260
Private Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type
Private Type WIN32_FIND_DATA
dwFileAttributes As Long
ftCreationTime As FILETIME
ftLastAccessTime As FILETIME
ftLastWriteTime As FILETIME
nFileSizeHigh As Long
nFileSizeLow As Long
dwReserved0 As Long
dwReserved1 As Long
cFileName As String * MAX_PATH
cAlternate As String * 14
End Type

Private Declare Function FindFirstFile Lib “kernel32” Alias “FindFirstFileA” (ByVal lpFileName As String, lpFindFileData As WIN32_FIND_DATA) As Long
Private Declare Function FindNextFile Lib “kernel32” Alias “FindNextFileA” (ByVal hFindFile As Long, lpFindFileData As WIN32_FIND_DATA) As Long
Private Declare Function FindClose Lib “kernel32” (ByVal hFindFile As Long) As Long
Private Declare Function GetLastError Lib “kernel32” () As Long

'Private Declare Function GetDirectory Lib “kernel32” Alias “GetDirectoryA” (ByVal lpPathName As String, lpcchSize As MAX_PATH) As Long

Private Const ERROR_NO_MORE_FILES = 18&
Private Const INVALID_HANDLE_VALUE = -1
Private Const DDL_DIRECTORY = &H10

Public ArchivePath As String
Public WithEvents nero As nero
Public drives As INeroDrives
Public WithEvents drive As NeroDrive
Public cnt As Integer
Public Folder As INeroFolder
Public strMessages As String
Public from_dir As String
Private Sub Burn_Click()
Dim fileNum
btnAbort.Enabled = True
Browse.Enabled = False
Burn.Enabled = False
edtMessages = “”
edtMessages.Refresh

Set Folder = New NeroFolder
Dim drives As INeroDrives
Set drives = nero.GetDrives(NERO_MEDIA_CDR)
Set drive = drives(AvailableDevices.ListIndex)
Dim isotrack As NeroISOTrack
Set isotrack = New NeroISOTrack
isotrack.Name = “TestTrack”
isotrack.RootFolder = Folder

fileNum = BurnFiles(Folder, ArchivePath)
strMessages = strMessages + “Prepared " & Format$(fileNum) & " files & Directories for writing.”
edtMessages = strMessages

isotrack.BurnOptions = NERO_BURN_OPTION_CREATE_ISO_FS Or NERO_BURN_OPTION_USE_JOLIET
'drive.BurnIsoAudioCD “”, “”, 0, isotrack, Nothing, Nothing, NERO_BURN_FLAG_SIMULATE + NERO_BURN_FLAG_WRITE + NERO_BURN_FLAG_BUF_UNDERRUN_PROT, 0, NERO_MEDIA_CD
drive.BurnIsoAudioCD “”, “”, 0, isotrack, Nothing, Nothing, NERO_BURN_FLAG_SIMULATE + NERO_BURN_FLAG_WRITE + NERO_BURN_FLAG_BUF_UNDERRUN_PROT, 0, NERO_MEDIA_CD
GoTo quit

handle_error:
strMessages = strMessages + Err.Description + Chr(13) + Chr(10) + nero.LastError
edtMessages = strMessages
quit:
End Sub
’ Burn all files below this directory. Return the
’ number of files burned.
Private Function BurnFiles(ByRef nroFolderToUse As NeroFolder, from_dir As String) As Long
Dim files_copied As Long
Dim dirs As Collection
Dim fname As String
Dim search_handle As Long
Dim file_data As WIN32_FIND_DATA
Dim i As Integer
Dim nroFolTmp As NeroFolder
Dim nroFilTmp As NeroFile
Dim from_folder As String

Set dirs = New Collection
'store the selected directory for later
from_folder = from_dir

’ Get the first file.
search_handle = FindFirstFile(from_dir & “.”, file_data)
If search_handle <> INVALID_HANDLE_VALUE Then
’ Get the rest of the files.
Do
’ Get the file name.
fname = file_data.cFileName
fname = Left$(fname, InStr(fname, Chr$(0)) - 1)

’ Skip the files “.” and “…”.
If fname <> “.” And fname <> “…” Then
files_copied = files_copied + 1

’ See if the file is a directory.
If file_data.dwFileAttributes And DDL_DIRECTORY Then
’ This is a directory.
’ Burn the new directory.
Set nroFolTmp = New NeroFolder
nroFolTmp.Name = fname
nroFolderToUse.Folders.Add nroFolTmp
strMessages = strMessages + “Directory " + nroFolTmp.Name + " added” + Chr(13) + Chr(10)
Me.edtMessages = strMessages

’ Save the directory name so we can search it later.
dirs.Add fname
Else
’ This is not a directory.
’ Burn the file.
Set nroFilTmp = New NeroFile
nroFilTmp.Name = fname
nroFilTmp.SourceFilePath = from_folder + fname
nroFolderToUse.Files.Add nroFilTmp
strMessages = strMessages + “File " + from_folder + fname + " added” + Chr(13) + Chr(10)
Me.edtMessages = strMessages
End If
End If

’ Get the next file.
If FindNextFile(search_handle, file_data) = 0 Then Exit Do
Loop

’ Close the file search hanlde.
FindClose search_handle
End If

’ Search subdirectories.
For i = 1 To dirs.Count
fname = dirs(i)
files_copied = files_copied + BurnFiles(Folder, from_dir & fname & “”)
Next i

BurnFiles = files_copied
End Function
Private Sub Browse_Click()
On Error GoTo ErrHandler

'Directory from where .wav files are copied

ArchivePath = “C:\CD_Test\CDA_Files”

If ArchivePath <> “” Then
Me!DirName.Text = ArchivePath + “.
End If

Burn.Enabled = True
Exit Sub

ErrHandler:
Exit Sub
End Sub
Private Sub btnAbort_Click()
nero.Abort
End Sub
Private Sub drive_OnAborted(Abort As Boolean)
Abort = False
End Sub
Private Sub drive_OnAddLogLine(TextType As NEROLib.NERO_TEXT_TYPE, Text As String)
strMessages = strMessages + Text + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub drive_OnDoneBurn(StatusCode As NEROLib.NERO_BURN_ERROR)
strMessages = strMessages + Chr(13) + Chr(10) + nero.ErrorLog + Chr(13) + Chr(10)
strMessages = strMessages + nero.LastError + Chr(13) + Chr(10)
strMessages = strMessages + "Burn finished "
If StatusCode <> NEROLib.NERO_BURN_OK Then
strMessages = strMessages + “NOT (” & StatusCode & “)”
End If
strMessages = strMessages + “successfully!” + Chr(13) + Chr(10)
edtMessages = strMessages
MsgBox (“CD was completed successfylly!”)
btnAbort.Enabled = False
Browse.Enabled = True
Burn.Enabled = True
ProgressBar.Value = 0
End Sub
Private Sub drive_OnDoneWaitForMedia(Success As Boolean)
strMessages = strMessages + “Done waiting for media.” + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub drive_OnProgress(ProgressInPercent As Long, Abort As Boolean)
Abort = False
ProgressBar.Value = ProgressInPercent
End Sub
Private Sub drive_OnSetPhase(Text As String)
strMessages = strMessages + Text + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub Form_Initialize()
Dim myIndex
Set nero = New nero

ProgressBar.Value = 0
strMessages = “”
Dim drives As INeroDrives
Set drives = nero.GetDrives(NERO_MEDIA_CDR)

For myIndex = 0 To drives.Count - 1
AvailableDevices.AddItem drives(myIndex).DeviceName, myIndex
Next
AvailableDevices.ListIndex = 0
ErrHandler:
Exit Sub
End Sub
Private Sub nero_OnFileSelImage(FileName As String)
ImageFileDialog.CancelError = True
On Error GoTo ErrHandler
ImageFileDialog.Flags = cdlOFNHideReadOnly
ImageFileDialog.FilterIndex = 2
ImageFileDialog.ShowOpen
FileName = ImageFileDialog.FileName
Exit Sub
ErrHandler:
Exit Sub
End Sub
Private Sub nero_OnMegaFatal()
strMessages = strMessages + “A mega fatal error has occurred.” + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub nero_OnNonEmptyCDRW(Response As NEROLib.NERO_RESPONSE)
strMessages = strMessages + “CD-RW not empty!” + Chr(13) + Chr(10)
edtMessages = strMessages
Response = NERO_RETURN_EXIT
End Sub
Private Sub nero_OnRestart()
strMessages = strMessages + “The system is being restarted.” + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub nero_OnWaitCD(WaitCD As NEROLib.NERO_WAITCD_TYPE, WaitCDLocalizedText As String)
strMessages = strMessages + WaitCDLocalizedText + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub nero_OnWaitCDDone()
strMessages = strMessages + “Done waiting for CD.” + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub nero_OnWaitCDMediaInfo(LastDetectedMedia As NEROLib.NERO_MEDIA_TYPE, LastDetectedMediaName As String, RequestedMedia As NEROLib.NERO_MEDIA_TYPE, RequestedMediaName As String)
strMessages = strMessages + “Waiting for a particular media type:” + Chr(13) + Chr(10)
strMessages = strMessages + RequestedMediaName + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub
Private Sub nero_OnWaitCDReminder()
strMessages = strMessages + “Still waiting for CD…” + Chr(13) + Chr(10)
edtMessages = strMessages
End Sub


#2

Can you please pin-point the problem? What kind of error are you having (syntax or run-time)?


#3

Alexp,

Thanks for the response.
I am not getting any error message ( runtime and compilation) ,
it perfectly copies the data files ( MP3, WAV ) but I am having problem to create an audio CD ( with .CDA extensions)
so that I can play it on regular audio palyer.

Do I need to add/assgign any other FLag/s on my code line ?

//////////////////////////////////////////

drive.BurnIsoAudioCD “”, “”, 0, isotrack, Nothing, Nothing, NERO_BURN_FLAG_SIMULATE + NERO_BURN_FLAG_WRITE + NERO_BURN_FLAG_BUF_UNDERRUN_PROT, 0, NERO_MEDIA_CD

////////////////////////////////////////

or is there any other setting I need to set to create an audio CD ?

Thanks,

anupdh


#4

Generally, you cannot burn an audio CD by passing an ISO track and no audio tracks. You should create a NeroAudioTracks, add tracks to it and pass it to BurnIsoAudioCD with or without an ISO track.

As far as burn flags go, you can skip over some and use some additional. That is all per your requirements and needs. You should consult the documentation for the purpose of each of them but generally, you need only a NERO_BURN_FLAG_WRITE.


#5

Thanks Alex,

I used NeroAudioTracks as you suggested and now it is creating CD Audio files correctly.

Thanks again,

anupdh