BatchGuy.App.FFMSIndex.Services.FFMSIndexBatchFileWriteService.IsAllBluRayPathsValid C# (CSharp) Метод

        private bool IsAllBluRayPathsValid()
        {
            bool isValid = true;

            foreach (BluRayDiscInfo disc in _bluRayDiscInfoList.Where(d => d.IsSelected))
            {
                foreach (BluRaySummaryInfo info in disc.BluRaySummaryInfoList.Where(s => s.IsSelected))
                {
                    if (info.BluRayTitleInfo != null)
                    {
                        if ((info.BluRayTitleInfo.AudioList != null && info.BluRayTitleInfo.AudioList.Where(a => a.IsSelected).Count() > 0) || (info.BluRayTitleInfo.Chapter != null && info.BluRayTitleInfo.Chapter.IsSelected)
                            || (info.BluRayTitleInfo.Subtitles != null && info.BluRayTitleInfo.Subtitles.Where(s => s.IsSelected).Count() > 0) || (info.BluRayTitleInfo.Video != null && info.BluRayTitleInfo.Video.IsSelected))
                        {
                            if (!_directorySystemService.Exists(disc.BluRayPath))
                                isValid = false;
                        }
                    }
                }
            }

            if (!isValid)
            {
                this._errors.Add(new Error() { Description = "Invalid Blu-ray disc directories found." });
            }
            return isValid;
        }