Add a css class to the checkboxes:
<asp:DataList ID="DataList1" runat="server" DataKeyField="AlbumID" >
<ItemTemplate>
Name:
<asp:Label ID="DescriptionLabel" runat="server" Text='<%# Eval("aName") %>' />
<br />
CD:
<asp:CheckBox ID="OnCD" CssClass="hidden" runat="server" Text='<%# Eval("AlbumID") %>' />
<br />
MP3:
<asp:CheckBox ID="OnMP3" CssClass="hidden" runat="server" Text='<%# Eval("AlbumID") %>' />
<br />
<br />
<br />
</ItemTemplate>
</asp:DataList>
And the style:
<style>
.hidden label
{
display:none;
}
</style>